Finding the Fourth Proportional to 272,125,789.47, 375,565,470.99 and 154,668,775.59
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Solution
The fourth proportional to 272,125,789.47, 375,565,470.99 and 154,668,775.59 is: 213,461,030.89
Step by Step Solution
- Step 1: Write the proportion equation
272,125,789.47 : 375,565,470.99 = 154,668,775.59 : x - Step 2: Convert to fraction form
272,125,789.47/375,565,470.99 = 154,668,775.59/x - Step 3: Cross multiply
272,125,789.47x = 375,565,470.99 × 154,668,775.59 - Step 4: Simplify right side
272,125,789.47x = 58,088,251,551,904,968 - Step 5: Solve for x
x = 58,088,251,551,904,968/272,125,789.47 - Step 6: Final answer
x = 213,461,030.89
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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.