Home / 172,067,923.20-257,902,819.20-69,781,382.40

Finding the Fourth Proportional to 172,067,923.20, 257,902,819.20 and 69,781,382.40

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Solution

The fourth proportional to 172,067,923.20, 257,902,819.20 and 69,781,382.40 is: 104,591,343.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,067,923.20 : 257,902,819.20 = 69,781,382.40 : x
  2. Step 2: Convert to fraction form
    172,067,923.20/257,902,819.20 = 69,781,382.40/x
  3. Step 3: Cross multiply
    172,067,923.20x = 257,902,819.20 × 69,781,382.40
  4. Step 4: Simplify right side
    172,067,923.20x = 17,996,815,248,633,262
  5. Step 5: Solve for x
    x = 17,996,815,248,633,262/172,067,923.20
  6. Step 6: Final answer
    x = 104,591,343.43

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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.