Home / 87,659,427.60-131,489,141.40-85,140,003.60

Finding the Fourth Proportional to 87,659,427.60, 131,489,141.40 and 85,140,003.60

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Solution

The fourth proportional to 87,659,427.60, 131,489,141.40 and 85,140,003.60 is: 127,710,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,659,427.60 : 131,489,141.40 = 85,140,003.60 : x
  2. Step 2: Convert to fraction form
    87,659,427.60/131,489,141.40 = 85,140,003.60/x
  3. Step 3: Cross multiply
    87,659,427.60x = 131,489,141.40 × 85,140,003.60
  4. Step 4: Simplify right side
    87,659,427.60x = 11,194,985,972,156,908
  5. Step 5: Solve for x
    x = 11,194,985,972,156,908/87,659,427.60
  6. Step 6: Final answer
    x = 127,710,005.40

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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.