Home / 102,187,898.80-140,998,249.12-58,719,436.72

Finding the Fourth Proportional to 102,187,898.80, 140,998,249.12 and 58,719,436.72

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Solution

The fourth proportional to 102,187,898.80, 140,998,249.12 and 58,719,436.72 is: 81,020,726.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,187,898.80 : 140,998,249.12 = 58,719,436.72 : x
  2. Step 2: Convert to fraction form
    102,187,898.80/140,998,249.12 = 58,719,436.72/x
  3. Step 3: Cross multiply
    102,187,898.80x = 140,998,249.12 × 58,719,436.72
  4. Step 4: Simplify right side
    102,187,898.80x = 8,279,337,766,832,636
  5. Step 5: Solve for x
    x = 8,279,337,766,832,636/102,187,898.80
  6. Step 6: Final answer
    x = 81,020,726.17

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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.