Home / 87,551,998.80-131,327,998.20-86,357,605.20

Finding the Fourth Proportional to 87,551,998.80, 131,327,998.20 and 86,357,605.20

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Solution

The fourth proportional to 87,551,998.80, 131,327,998.20 and 86,357,605.20 is: 129,536,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,551,998.80 : 131,327,998.20 = 86,357,605.20 : x
  2. Step 2: Convert to fraction form
    87,551,998.80/131,327,998.20 = 86,357,605.20/x
  3. Step 3: Cross multiply
    87,551,998.80x = 131,327,998.20 × 86,357,605.20
  4. Step 4: Simplify right side
    87,551,998.80x = 11,341,171,420,261,912
  5. Step 5: Solve for x
    x = 11,341,171,420,261,912/87,551,998.80
  6. Step 6: Final answer
    x = 129,536,407.80

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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.