Home / 87,619,232.80-131,176,906.80-85,099,808.80

Finding the Fourth Proportional to 87,619,232.80, 131,176,906.80 and 85,099,808.80

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Solution

The fourth proportional to 87,619,232.80, 131,176,906.80 and 85,099,808.80 is: 127,405,015.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,619,232.80 : 131,176,906.80 = 85,099,808.80 : x
  2. Step 2: Convert to fraction form
    87,619,232.80/131,176,906.80 = 85,099,808.80/x
  3. Step 3: Cross multiply
    87,619,232.80x = 131,176,906.80 × 85,099,808.80
  4. Step 4: Simplify right side
    87,619,232.80x = 11,163,129,687,655,420
  5. Step 5: Solve for x
    x = 11,163,129,687,655,420/87,619,232.80
  6. Step 6: Final answer
    x = 127,405,015.21

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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.