Home / 12,687,446.75-17,508,487.77-7,181,865.61

Finding the Fourth Proportional to 12,687,446.75, 17,508,487.77 and 7,181,865.61

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Solution

The fourth proportional to 12,687,446.75, 17,508,487.77 and 7,181,865.61 is: 9,910,867.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,446.75 : 17,508,487.77 = 7,181,865.61 : x
  2. Step 2: Convert to fraction form
    12,687,446.75/17,508,487.77 = 7,181,865.61/x
  3. Step 3: Cross multiply
    12,687,446.75x = 17,508,487.77 × 7,181,865.61
  4. Step 4: Simplify right side
    12,687,446.75x = 125,743,606,154,697.36
  5. Step 5: Solve for x
    x = 125,743,606,154,697.36/12,687,446.75
  6. Step 6: Final answer
    x = 9,910,867.70

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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.