Home / 485,108,679.70-727,663,019.55-178,337,314.90

Finding the Fourth Proportional to 485,108,679.70, 727,663,019.55 and 178,337,314.90

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Solution

The fourth proportional to 485,108,679.70, 727,663,019.55 and 178,337,314.90 is: 267,505,972.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,108,679.70 : 727,663,019.55 = 178,337,314.90 : x
  2. Step 2: Convert to fraction form
    485,108,679.70/727,663,019.55 = 178,337,314.90/x
  3. Step 3: Cross multiply
    485,108,679.70x = 727,663,019.55 × 178,337,314.90
  4. Step 4: Simplify right side
    485,108,679.70x = 129,769,469,058,573,200
  5. Step 5: Solve for x
    x = 129,769,469,058,573,200/485,108,679.70
  6. Step 6: Final answer
    x = 267,505,972.35

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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.