Home / 83,133,030.20-124,699,545.30-81,715,854.20

Finding the Fourth Proportional to 83,133,030.20, 124,699,545.30 and 81,715,854.20

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Solution

The fourth proportional to 83,133,030.20, 124,699,545.30 and 81,715,854.20 is: 122,573,781.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,133,030.20 : 124,699,545.30 = 81,715,854.20 : x
  2. Step 2: Convert to fraction form
    83,133,030.20/124,699,545.30 = 81,715,854.20/x
  3. Step 3: Cross multiply
    83,133,030.20x = 124,699,545.30 × 81,715,854.20
  4. Step 4: Simplify right side
    83,133,030.20x = 10,189,929,862,541,096
  5. Step 5: Solve for x
    x = 10,189,929,862,541,096/83,133,030.20
  6. Step 6: Final answer
    x = 122,573,781.30

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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.