Finding the Fourth Proportional to 118,518,251.30, 177,423,178.52 and 71,690,020.49
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Solution
The fourth proportional to 118,518,251.30, 177,423,178.52 and 71,690,020.49 is: 107,320,781.09
Step by Step Solution
- Step 1: Write the proportion equation
118,518,251.30 : 177,423,178.52 = 71,690,020.49 : x - Step 2: Convert to fraction form
118,518,251.30/177,423,178.52 = 71,690,020.49/x - Step 3: Cross multiply
118,518,251.30x = 177,423,178.52 × 71,690,020.49 - Step 4: Simplify right side
118,518,251.30x = 12,719,471,302,254,160 - Step 5: Solve for x
x = 12,719,471,302,254,160/118,518,251.30 - Step 6: Final answer
x = 107,320,781.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.