How many McDonald's does it take to completely cover the earth?

1.  Background Story:
My Fermi problem is, hqow many McDonalds does it take to completely cover the earth?
Measured in square feet. I chose this problem because I have heard lots about 'McDonalds taking over the world' so I figured that I could see how many Mcdonalds it would really take to 'take over the world'.








2.  Ask Yourself This:
1.) How many square feet is the earths surface?
2.) How many square feet is the average McDonalds area?
3.) What is the final number?






3.  Helpful Hints:


The Earths surface is 5,490,383,247,360,000 square feet, I looked it up on the internet.
The minimum square footage of a McDonalds resturant is 2,000 square feet.





4.  Construct a Formula:

Earths surface divided by the square footage of the McDonalds area equals the number of the answer.








5.  Messy Math:
5,490,383,247,360,000 divided by 2,000 = 274691623680
It would take 274,691,623,680 McDonalds to cover the entire surface of the earth.










6.  Answer: