Home / 91,377,781.52-137,108,528.40-39,578,227.28

Finding the Fourth Proportional to 91,377,781.52, 137,108,528.40 and 39,578,227.28

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Solution

The fourth proportional to 91,377,781.52, 137,108,528.40 and 39,578,227.28 is: 59,385,469.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,377,781.52 : 137,108,528.40 = 39,578,227.28 : x
  2. Step 2: Convert to fraction form
    91,377,781.52/137,108,528.40 = 39,578,227.28/x
  3. Step 3: Cross multiply
    91,377,781.52x = 137,108,528.40 × 39,578,227.28
  4. Step 4: Simplify right side
    91,377,781.52x = 5,426,512,499,041,535
  5. Step 5: Solve for x
    x = 5,426,512,499,041,535/91,377,781.52
  6. Step 6: Final answer
    x = 59,385,469.96

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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.