Home / 90,329,613.20-124,654,866.04-51,171,389.90

Finding the Fourth Proportional to 90,329,613.20, 124,654,866.04 and 51,171,389.90

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Solution

The fourth proportional to 90,329,613.20, 124,654,866.04 and 51,171,389.90 is: 70,616,517.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,329,613.20 : 124,654,866.04 = 51,171,389.90 : x
  2. Step 2: Convert to fraction form
    90,329,613.20/124,654,866.04 = 51,171,389.90/x
  3. Step 3: Cross multiply
    90,329,613.20x = 124,654,866.04 × 51,171,389.90
  4. Step 4: Simplify right side
    90,329,613.20x = 6,378,762,753,065,109
  5. Step 5: Solve for x
    x = 6,378,762,753,065,109/90,329,613.20
  6. Step 6: Final answer
    x = 70,616,517.96

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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.