Home / 80,496,008.20-120,744,012.30-60,340,616.20

Finding the Fourth Proportional to 80,496,008.20, 120,744,012.30 and 60,340,616.20

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Solution

The fourth proportional to 80,496,008.20, 120,744,012.30 and 60,340,616.20 is: 90,510,924.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,496,008.20 : 120,744,012.30 = 60,340,616.20 : x
  2. Step 2: Convert to fraction form
    80,496,008.20/120,744,012.30 = 60,340,616.20/x
  3. Step 3: Cross multiply
    80,496,008.20x = 120,744,012.30 × 60,340,616.20
  4. Step 4: Simplify right side
    80,496,008.20x = 7,285,768,104,642,379
  5. Step 5: Solve for x
    x = 7,285,768,104,642,379/80,496,008.20
  6. Step 6: Final answer
    x = 90,510,924.30

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Similar ratio
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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.