Home / 442,890,004.20-664,331,507.10-115,364,884.20

Finding the Fourth Proportional to 442,890,004.20, 664,331,507.10 and 115,364,884.20

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Solution

The fourth proportional to 442,890,004.20, 664,331,507.10 and 115,364,884.20 is: 173,046,414.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,890,004.20 : 664,331,507.10 = 115,364,884.20 : x
  2. Step 2: Convert to fraction form
    442,890,004.20/664,331,507.10 = 115,364,884.20/x
  3. Step 3: Cross multiply
    442,890,004.20x = 664,331,507.10 × 115,364,884.20
  4. Step 4: Simplify right side
    442,890,004.20x = 76,640,527,387,002,976
  5. Step 5: Solve for x
    x = 76,640,527,387,002,976/442,890,004.20
  6. Step 6: Final answer
    x = 173,046,414.82

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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.