Home / 87,078,542.63-120,141,331.28-49,395,500.64

Finding the Fourth Proportional to 87,078,542.63, 120,141,331.28 and 49,395,500.64

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Solution

The fourth proportional to 87,078,542.63, 120,141,331.28 and 49,395,500.64 is: 68,150,442.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,078,542.63 : 120,141,331.28 = 49,395,500.64 : x
  2. Step 2: Convert to fraction form
    87,078,542.63/120,141,331.28 = 49,395,500.64/x
  3. Step 3: Cross multiply
    87,078,542.63x = 120,141,331.28 × 49,395,500.64
  4. Step 4: Simplify right side
    87,078,542.63x = 5,934,441,206,255,181
  5. Step 5: Solve for x
    x = 5,934,441,206,255,181/87,078,542.63
  6. Step 6: Final answer
    x = 68,150,442.43

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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.