The total surface area of earth is about 1.97*10^8 square miles. the surface area of land on earth is about 5.73*10^7 square miles. find the ratio of the surface area of land to the entire planet.?
ratio means one divided by the other.
surface area/land area = 1.97*10^8/5.73*10^7
To find the ratio of the surface area of land to the entire planet, we need to divide the surface area of land by the total surface area of the Earth.
Step 1: Write down the given values:
Total surface area of Earth = 1.97 * 10^8 square miles
Surface area of land = 5.73 * 10^7 square miles
Step 2: Divide the surface area of land by the total surface area of Earth:
Ratio = Surface area of land / Total surface area of Earth
Ratio = (5.73 * 10^7) / (1.97 * 10^8)
Step 3: Simplify the ratio by dividing both numbers by their common factors:
Ratio = (5.73 / 1.97) * (10^7 / 10^8)
Ratio = 2.91 * 10^(-1)
Step 4: Convert the ratio to decimal form:
Ratio ≈ 0.291
Therefore, the ratio of the surface area of land to the entire planet is approximately 0.291.