Home / 67,419,008.30-101,128,512.45-38,753,561.90

Finding the Fourth Proportional to 67,419,008.30, 101,128,512.45 and 38,753,561.90

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Solution

The fourth proportional to 67,419,008.30, 101,128,512.45 and 38,753,561.90 is: 58,130,342.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,419,008.30 : 101,128,512.45 = 38,753,561.90 : x
  2. Step 2: Convert to fraction form
    67,419,008.30/101,128,512.45 = 38,753,561.90/x
  3. Step 3: Cross multiply
    67,419,008.30x = 101,128,512.45 × 38,753,561.90
  4. Step 4: Simplify right side
    67,419,008.30x = 3,919,090,067,085,995.50
  5. Step 5: Solve for x
    x = 3,919,090,067,085,995.50/67,419,008.30
  6. Step 6: Final answer
    x = 58,130,342.85

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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.