Home / 521,471,839.38-781,721,482.32-176,183,992.86

Finding the Fourth Proportional to 521,471,839.38, 781,721,482.32 and 176,183,992.86

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Solution

The fourth proportional to 521,471,839.38, 781,721,482.32 and 176,183,992.86 is: 264,111,696.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,471,839.38 : 781,721,482.32 = 176,183,992.86 : x
  2. Step 2: Convert to fraction form
    521,471,839.38/781,721,482.32 = 176,183,992.86/x
  3. Step 3: Cross multiply
    521,471,839.38x = 781,721,482.32 × 176,183,992.86
  4. Step 4: Simplify right side
    521,471,839.38x = 137,726,812,059,575,520
  5. Step 5: Solve for x
    x = 137,726,812,059,575,520/521,471,839.38
  6. Step 6: Final answer
    x = 264,111,696.28

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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.