Finding the Fourth Proportional to 518,221,107.04, 715,145,160.72 and 283,272,697.12
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Solution
The fourth proportional to 518,221,107.04, 715,145,160.72 and 283,272,697.12 is: 390,916,340.07
Step by Step Solution
- Step 1: Write the proportion equation
518,221,107.04 : 715,145,160.72 = 283,272,697.12 : x - Step 2: Convert to fraction form
518,221,107.04/715,145,160.72 = 283,272,697.12/x - Step 3: Cross multiply
518,221,107.04x = 715,145,160.72 × 283,272,697.12 - Step 4: Simplify right side
518,221,107.04x = 202,581,098,509,470,304 - Step 5: Solve for x
x = 202,581,098,509,470,304/518,221,107.04 - Step 6: Final answer
x = 390,916,340.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.