Google Earth - dependency is not satisfiable...

[m654321]

I downloaded Google Earth from the internet (Debian/Ubuntu 64-bit version) but
failed to get gdebi package manager to install it.  I also used the
synaptic package manager and downloaded the version there in the repository but
without luck there either.

In both cases, when gdebi started installation, the following message is given on
the gdebi window:

"Error: Dependency is not satisfiable: ia32-libs"

I then used the terminal  "sudo apt-get install ia32-libs" but this failed to fetch and install
ia32-libs.

Any help, much appreciated.
Regards
Mike