Home / 431,569,414.35-647,354,121.53-247,147,577.55

Finding the Fourth Proportional to 431,569,414.35, 647,354,121.53 and 247,147,577.55

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Solution

The fourth proportional to 431,569,414.35, 647,354,121.53 and 247,147,577.55 is: 370,721,366.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,569,414.35 : 647,354,121.53 = 247,147,577.55 : x
  2. Step 2: Convert to fraction form
    431,569,414.35/647,354,121.53 = 247,147,577.55/x
  3. Step 3: Cross multiply
    431,569,414.35x = 647,354,121.53 × 247,147,577.55
  4. Step 4: Simplify right side
    431,569,414.35x = 159,992,002,951,912,064
  5. Step 5: Solve for x
    x = 159,992,002,951,912,064/431,569,414.35
  6. Step 6: Final answer
    x = 370,721,366.33

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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.