Home / 72,502,406.10-108,753,609.15-69,715,487.70

Finding the Fourth Proportional to 72,502,406.10, 108,753,609.15 and 69,715,487.70

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Solution

The fourth proportional to 72,502,406.10, 108,753,609.15 and 69,715,487.70 is: 104,573,231.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,502,406.10 : 108,753,609.15 = 69,715,487.70 : x
  2. Step 2: Convert to fraction form
    72,502,406.10/108,753,609.15 = 69,715,487.70/x
  3. Step 3: Cross multiply
    72,502,406.10x = 108,753,609.15 × 69,715,487.70
  4. Step 4: Simplify right side
    72,502,406.10x = 7,581,810,901,027,433
  5. Step 5: Solve for x
    x = 7,581,810,901,027,433/72,502,406.10
  6. Step 6: Final answer
    x = 104,573,231.55

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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.