Finding the Fourth Proportional to 212,981,305.60, 319,507,275.20 and 74,771,040
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Solution
The fourth proportional to 212,981,305.60, 319,507,275.20 and 74,771,040 is: 112,168,958.62
Step by Step Solution
- Step 1: Write the proportion equation
212,981,305.60 : 319,507,275.20 = 74,771,040 : x - Step 2: Convert to fraction form
212,981,305.60/319,507,275.20 = 74,771,040/x - Step 3: Cross multiply
212,981,305.60x = 319,507,275.20 × 74,771,040 - Step 4: Simplify right side
212,981,305.60x = 23,889,891,254,270,208 - Step 5: Solve for x
x = 23,889,891,254,270,208/212,981,305.60 - Step 6: Final answer
x = 112,168,958.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.