Home / 80,474,642.63-111,057,689.29-45,198,664.15

Finding the Fourth Proportional to 80,474,642.63, 111,057,689.29 and 45,198,664.15

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Solution

The fourth proportional to 80,474,642.63, 111,057,689.29 and 45,198,664.15 is: 62,375,663.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,474,642.63 : 111,057,689.29 = 45,198,664.15 : x
  2. Step 2: Convert to fraction form
    80,474,642.63/111,057,689.29 = 45,198,664.15/x
  3. Step 3: Cross multiply
    80,474,642.63x = 111,057,689.29 × 45,198,664.15
  4. Step 4: Simplify right side
    80,474,642.63x = 5,019,659,199,982,289
  5. Step 5: Solve for x
    x = 5,019,659,199,982,289/80,474,642.63
  6. Step 6: Final answer
    x = 62,375,663.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.