Home / 87,417,813.80-131,126,720.70-64,459,562.60

Finding the Fourth Proportional to 87,417,813.80, 131,126,720.70 and 64,459,562.60

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Solution

The fourth proportional to 87,417,813.80, 131,126,720.70 and 64,459,562.60 is: 96,689,343.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,417,813.80 : 131,126,720.70 = 64,459,562.60 : x
  2. Step 2: Convert to fraction form
    87,417,813.80/131,126,720.70 = 64,459,562.60/x
  3. Step 3: Cross multiply
    87,417,813.80x = 131,126,720.70 × 64,459,562.60
  4. Step 4: Simplify right side
    87,417,813.80x = 8,452,371,061,494,366
  5. Step 5: Solve for x
    x = 8,452,371,061,494,366/87,417,813.80
  6. Step 6: Final answer
    x = 96,689,343.90

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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.