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Finding the Fourth Proportional to 252,251,881.60, 378,433,809.60 and 115,904,387.20

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Solution

The fourth proportional to 252,251,881.60, 378,433,809.60 and 115,904,387.20 is: 173,882,305.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,251,881.60 : 378,433,809.60 = 115,904,387.20 : x
  2. Step 2: Convert to fraction form
    252,251,881.60/378,433,809.60 = 115,904,387.20/x
  3. Step 3: Cross multiply
    252,251,881.60x = 378,433,809.60 × 115,904,387.20
  4. Step 4: Simplify right side
    252,251,881.60x = 43,862,138,797,449,480
  5. Step 5: Solve for x
    x = 43,862,138,797,449,480/252,251,881.60
  6. Step 6: Final answer
    x = 173,882,305.73

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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.