Home / 20,321,850.24-28,067,428.32-13,383,543.52

Finding the Fourth Proportional to 20,321,850.24, 28,067,428.32 and 13,383,543.52

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Solution

The fourth proportional to 20,321,850.24, 28,067,428.32 and 13,383,543.52 is: 18,484,618.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,321,850.24 : 28,067,428.32 = 13,383,543.52 : x
  2. Step 2: Convert to fraction form
    20,321,850.24/28,067,428.32 = 13,383,543.52/x
  3. Step 3: Cross multiply
    20,321,850.24x = 28,067,428.32 × 13,383,543.52
  4. Step 4: Simplify right side
    20,321,850.24x = 375,641,648,415,200.50
  5. Step 5: Solve for x
    x = 375,641,648,415,200.50/20,321,850.24
  6. Step 6: Final answer
    x = 18,484,618.48

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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.