Home / 80,221,162.32-120,376,453.05-43,332,309.18

Finding the Fourth Proportional to 80,221,162.32, 120,376,453.05 and 43,332,309.18

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Solution

The fourth proportional to 80,221,162.32, 120,376,453.05 and 43,332,309.18 is: 65,022,614.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,221,162.32 : 120,376,453.05 = 43,332,309.18 : x
  2. Step 2: Convert to fraction form
    80,221,162.32/120,376,453.05 = 43,332,309.18/x
  3. Step 3: Cross multiply
    80,221,162.32x = 120,376,453.05 × 43,332,309.18
  4. Step 4: Simplify right side
    80,221,162.32x = 5,216,189,681,554,354
  5. Step 5: Solve for x
    x = 5,216,189,681,554,354/80,221,162.32
  6. Step 6: Final answer
    x = 65,022,614.12

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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.