Home / 20,644,385.38-28,491,065.61-11,353,591.12

Finding the Fourth Proportional to 20,644,385.38, 28,491,065.61 and 11,353,591.12

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Solution

The fourth proportional to 20,644,385.38, 28,491,065.61 and 11,353,591.12 is: 15,668,953.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,644,385.38 : 28,491,065.61 = 11,353,591.12 : x
  2. Step 2: Convert to fraction form
    20,644,385.38/28,491,065.61 = 11,353,591.12/x
  3. Step 3: Cross multiply
    20,644,385.38x = 28,491,065.61 × 11,353,591.12
  4. Step 4: Simplify right side
    20,644,385.38x = 323,475,909,448,360.75
  5. Step 5: Solve for x
    x = 323,475,909,448,360.75/20,644,385.38
  6. Step 6: Final answer
    x = 15,668,953.25

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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.