Home / 10,791,646.10-16,187,469.15-7,780,147.10

Finding the Fourth Proportional to 10,791,646.10, 16,187,469.15 and 7,780,147.10

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Solution

The fourth proportional to 10,791,646.10, 16,187,469.15 and 7,780,147.10 is: 11,670,220.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,791,646.10 : 16,187,469.15 = 7,780,147.10 : x
  2. Step 2: Convert to fraction form
    10,791,646.10/16,187,469.15 = 7,780,147.10/x
  3. Step 3: Cross multiply
    10,791,646.10x = 16,187,469.15 × 7,780,147.10
  4. Step 4: Simplify right side
    10,791,646.10x = 125,940,891,163,711.97
  5. Step 5: Solve for x
    x = 125,940,891,163,711.97/10,791,646.10
  6. Step 6: Final answer
    x = 11,670,220.65

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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.