Home / 80,496,584.20-120,744,876.30-57,989,729.80

Finding the Fourth Proportional to 80,496,584.20, 120,744,876.30 and 57,989,729.80

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Solution

The fourth proportional to 80,496,584.20, 120,744,876.30 and 57,989,729.80 is: 86,984,594.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,496,584.20 : 120,744,876.30 = 57,989,729.80 : x
  2. Step 2: Convert to fraction form
    80,496,584.20/120,744,876.30 = 57,989,729.80/x
  3. Step 3: Cross multiply
    80,496,584.20x = 120,744,876.30 × 57,989,729.80
  4. Step 4: Simplify right side
    80,496,584.20x = 7,001,962,751,371,423
  5. Step 5: Solve for x
    x = 7,001,962,751,371,423/80,496,584.20
  6. Step 6: Final answer
    x = 86,984,594.70

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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.