Home / 80,221,163.32-120,376,454.55-43,332,310.18

Finding the Fourth Proportional to 80,221,163.32, 120,376,454.55 and 43,332,310.18

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Solution

The fourth proportional to 80,221,163.32, 120,376,454.55 and 43,332,310.18 is: 65,022,615.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,221,163.32 : 120,376,454.55 = 43,332,310.18 : x
  2. Step 2: Convert to fraction form
    80,221,163.32/120,376,454.55 = 43,332,310.18/x
  3. Step 3: Cross multiply
    80,221,163.32x = 120,376,454.55 × 43,332,310.18
  4. Step 4: Simplify right side
    80,221,163.32x = 5,216,189,866,929,272
  5. Step 5: Solve for x
    x = 5,216,189,866,929,272/80,221,163.32
  6. Step 6: Final answer
    x = 65,022,615.62

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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.