Home / 13,309,217.30-18,366,775.23-7,197,645.80

Finding the Fourth Proportional to 13,309,217.30, 18,366,775.23 and 7,197,645.80

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Solution

The fourth proportional to 13,309,217.30, 18,366,775.23 and 7,197,645.80 is: 9,932,781.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,217.30 : 18,366,775.23 = 7,197,645.80 : x
  2. Step 2: Convert to fraction form
    13,309,217.30/18,366,775.23 = 7,197,645.80/x
  3. Step 3: Cross multiply
    13,309,217.30x = 18,366,775.23 × 7,197,645.80
  4. Step 4: Simplify right side
    13,309,217.30x = 132,197,542,593,753.53
  5. Step 5: Solve for x
    x = 132,197,542,593,753.53/13,309,217.30
  6. Step 6: Final answer
    x = 9,932,781.14

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1.5x scale

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.