Home / 72,718,452.45-109,115,832.92-27,311,589.09

Finding the Fourth Proportional to 72,718,452.45, 109,115,832.92 and 27,311,589.09

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Solution

The fourth proportional to 72,718,452.45, 109,115,832.92 and 27,311,589.09 is: 40,981,713.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,718,452.45 : 109,115,832.92 = 27,311,589.09 : x
  2. Step 2: Convert to fraction form
    72,718,452.45/109,115,832.92 = 27,311,589.09/x
  3. Step 3: Cross multiply
    72,718,452.45x = 109,115,832.92 × 27,311,589.09
  4. Step 4: Simplify right side
    72,718,452.45x = 2,980,126,791,787,577
  5. Step 5: Solve for x
    x = 2,980,126,791,787,577/72,718,452.45
  6. Step 6: Final answer
    x = 40,981,713.60

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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.