Home / 80,459,234.20-120,688,851.30-31,948,658.20

Finding the Fourth Proportional to 80,459,234.20, 120,688,851.30 and 31,948,658.20

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Solution

The fourth proportional to 80,459,234.20, 120,688,851.30 and 31,948,658.20 is: 47,922,987.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,459,234.20 : 120,688,851.30 = 31,948,658.20 : x
  2. Step 2: Convert to fraction form
    80,459,234.20/120,688,851.30 = 31,948,658.20/x
  3. Step 3: Cross multiply
    80,459,234.20x = 120,688,851.30 × 31,948,658.20
  4. Step 4: Simplify right side
    80,459,234.20x = 3,855,846,858,734,325.50
  5. Step 5: Solve for x
    x = 3,855,846,858,734,325.50/80,459,234.20
  6. Step 6: Final answer
    x = 47,922,987.30

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1.5x scale

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.