Question 427998
each person takes up a volume of 2 cubic feet.


cubical box measures 1/2 mile on each side.


1/2 mile is equal to 5280 / 2 = 2640 feet.


volume of the cubical box is 2640^3 = 1.8399744 * 10^10 cubic feet.


divide that by 2 cubic feet per person and you get 9.199872 * 10^9 persons that can fit into that space.


there are 6.6 billion persons in the world.


that's equivalent to 6.6 * 10^9 persons.


the proportion of persons that can fit into this space is therefore equal to (9.199872 * 10^9) / (6.6 * 10^9) = 9.199872 / 6.6 = 1.39392.


139.392% of the world's population can fit into a space that is 1/2 mile on each side.