Home / 80,459,233.20-120,688,849.80-31,948,657.20

Finding the Fourth Proportional to 80,459,233.20, 120,688,849.80 and 31,948,657.20

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Solution

The fourth proportional to 80,459,233.20, 120,688,849.80 and 31,948,657.20 is: 47,922,985.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,459,233.20 : 120,688,849.80 = 31,948,657.20 : x
  2. Step 2: Convert to fraction form
    80,459,233.20/120,688,849.80 = 31,948,657.20/x
  3. Step 3: Cross multiply
    80,459,233.20x = 120,688,849.80 × 31,948,657.20
  4. Step 4: Simplify right side
    80,459,233.20x = 3,855,846,690,122,488.50
  5. Step 5: Solve for x
    x = 3,855,846,690,122,488.50/80,459,233.20
  6. Step 6: Final answer
    x = 47,922,985.80

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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.