Will at walnut float or sink in water

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

In the diagram, the ratios of two pairs of corresponding sides are equal to prove that almn - axyz by the sas similarity theorem, it also needs to be shown that x 6 z un z zz un = 2x zləzz lezy

I’m still confused on how to work the percentages