+17 land covers 29.2 of the earth's surface or 43 508 000km2. how many square km is the earth's surface
and
water covers 70.8 of the earth's surface. how many sqaure km of water are on the earth's surface
+37157 29.2 /4350800 = 100/x
x = 100/29.2 * 4350800 = 14,900,000 sq km
As a ratio:
70.8/29.2 = x/ 43508000
x = 70.8/29.2 * 4350800 = 10,549,200 sq km
land covers 29.2 of the earth's surface or 43 508 000km2. how many square km is the earth's surface
and
water covers 70.8 of the earth's surface. how many sqaure km of water are on the earth's surface
I think you got some of your figures wrong!!. It is true that land covers 29.2% of the Earth's surface, which comes to about 149,000,000 Km^2. Therefore, the total surface area of the Earth is: 149,000,000/.292=~510,000,000 Sq.Km. Then you have:510,000,000 x .708=361,000,000 Sq.Km of water that covers the Earth's surface.
+37157 Sorry Guest, you got the wrong numbers too!
CORRECTED (DUE TO USING 4350800 MISTAKENLY INSTEAD OF 43508000)
29.2 /4350800 = 100/x
x = 100/29.2 * 43508000 = 149,000,000 sq km = Earth's surface total area (land surface is given as 43508000)
As a ratio: (TO FIND WATER SURFACE)
70.8/29.2 = x/ 43508000
x = 70.8/29.2 * 43508000 = 105,492,000 sq km is the water surface area
CHECK: TOTAL AREA - LAND AREA = WATER AREA
149000000 - 43508000 = 105,492,00 sq km OK! Finally !
