Home / 22,572,200.40-31,151,557.68-12,784,385.82

Finding the Fourth Proportional to 22,572,200.40, 31,151,557.68 and 12,784,385.82

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Solution

The fourth proportional to 22,572,200.40, 31,151,557.68 and 12,784,385.82 is: 17,643,540.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,572,200.40 : 31,151,557.68 = 12,784,385.82 : x
  2. Step 2: Convert to fraction form
    22,572,200.40/31,151,557.68 = 12,784,385.82/x
  3. Step 3: Cross multiply
    22,572,200.40x = 31,151,557.68 × 12,784,385.82
  4. Step 4: Simplify right side
    22,572,200.40x = 398,253,532,275,104.12
  5. Step 5: Solve for x
    x = 398,253,532,275,104.12/22,572,200.40
  6. Step 6: Final answer
    x = 17,643,540.52

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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.