Please let me know if you need any clarification. I'm always happy to answer your questions.

Aug 18th, 2015

Hi, I am sorry the site had a problem, I had to submit the incomplete answer first. To find the ratio, we now divide the moon's surface area over the earth's surface area.

Hence:6.0026*10*14/2.5349*10^13=23.693.

Hence the ratio of the earth's S.A to the moon's is 1:23.69