Home / 28,551,245.04-39,400,768.15-15,498,512.82

Finding the Fourth Proportional to 28,551,245.04, 39,400,768.15 and 15,498,512.82

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Solution

The fourth proportional to 28,551,245.04, 39,400,768.15 and 15,498,512.82 is: 21,387,974.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,551,245.04 : 39,400,768.15 = 15,498,512.82 : x
  2. Step 2: Convert to fraction form
    28,551,245.04/39,400,768.15 = 15,498,512.82/x
  3. Step 3: Cross multiply
    28,551,245.04x = 39,400,768.15 × 15,498,512.82
  4. Step 4: Simplify right side
    28,551,245.04x = 610,653,310,251,876.38
  5. Step 5: Solve for x
    x = 610,653,310,251,876.38/28,551,245.04
  6. Step 6: Final answer
    x = 21,387,974.83

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Double scale
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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.