Home / 8,691,458.10-13,032,003.15-5,328,078.90

Finding the Fourth Proportional to 8,691,458.10, 13,032,003.15 and 5,328,078.90

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Solution

The fourth proportional to 8,691,458.10, 13,032,003.15 and 5,328,078.90 is: 7,988,940.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691,458.10 : 13,032,003.15 = 5,328,078.90 : x
  2. Step 2: Convert to fraction form
    8,691,458.10/13,032,003.15 = 5,328,078.90/x
  3. Step 3: Cross multiply
    8,691,458.10x = 13,032,003.15 × 5,328,078.90
  4. Step 4: Simplify right side
    8,691,458.10x = 69,435,541,008,248.54
  5. Step 5: Solve for x
    x = 69,435,541,008,248.54/8,691,458.10
  6. Step 6: Final answer
    x = 7,988,940.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.