Migrate virtual machines in google cloud to azure cloud using free tool or low cost tool in details

Don't you use a backup service for your VMs? If you do a simple Bare Metal restore could do the trick :)

I really font understand your solution
Please explain the virtual machines is in google cloud what are you talking about ??

I understand the Virtual Machines are on Google Cloud.
Do you make Backups of these?
With Veeam or Datto or any other Backup?

I have them on google storage  as compressed vhdx
As google who manage their datacenters by creating snapshots or mine by creating disk image file and transfer it to google storage.
What about of tools as azure migrate that can do migration online by pointing source and destination?
Waiting for more info 

Thank you
but really it is so difficult to let it standard as to  export large virtual machine as I need discover and sync solution tool as Az migrate or low cost solution tool that can map source of virtual machine in google cloud  and destination  in azure for new virtual machine and do thetask
waiting for more info 

MS has something. Check it out:
https://azure.microsoft.com/en-us/blog/introducing-the-new-azure-migrate-a-hub-for-your-migration-needs/

And it's Free for the basic functions: https://azure.microsoft.com/en-gb/pricing/details/azure-migrate/

I see that it give me choice   for hyperv or vmware as on premises appliance to import so to discover on premises infrastructure for vmware or hyper v  but no google cloud as i dont know if virtual machine in google cloud is hosted on vmware or hyper v
Please explain as WAiting for more info

I see the machine is in replicated but synch is zero for long time

what may be the problem

I haven't used that personally.
Maybe someone who has can help here or I'm sure MS can help if you open a service request with them.