Home / 243,306,129.38-335,755,521.85-142,832,950.97

Finding the Fourth Proportional to 243,306,129.38, 335,755,521.85 and 142,832,950.97

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Solution

The fourth proportional to 243,306,129.38, 335,755,521.85 and 142,832,950.97 is: 197,105,400.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,306,129.38 : 335,755,521.85 = 142,832,950.97 : x
  2. Step 2: Convert to fraction form
    243,306,129.38/335,755,521.85 = 142,832,950.97/x
  3. Step 3: Cross multiply
    243,306,129.38x = 335,755,521.85 × 142,832,950.97
  4. Step 4: Simplify right side
    243,306,129.38x = 47,956,951,988,540,480
  5. Step 5: Solve for x
    x = 47,956,951,988,540,480/243,306,129.38
  6. Step 6: Final answer
    x = 197,105,400.15

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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.