Home / 20,321,805.14-28,067,366.22-13,383,498.50

Finding the Fourth Proportional to 20,321,805.14, 28,067,366.22 and 13,383,498.50

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Solution

The fourth proportional to 20,321,805.14, 28,067,366.22 and 13,383,498.50 is: 18,484,556.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,321,805.14 : 28,067,366.22 = 13,383,498.50 : x
  2. Step 2: Convert to fraction form
    20,321,805.14/28,067,366.22 = 13,383,498.50/x
  3. Step 3: Cross multiply
    20,321,805.14x = 28,067,366.22 × 13,383,498.50
  4. Step 4: Simplify right side
    20,321,805.14x = 375,639,553,704,320.62
  5. Step 5: Solve for x
    x = 375,639,553,704,320.62/20,321,805.14
  6. Step 6: Final answer
    x = 18,484,556.42

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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.