Home / 206,378,237.04-309,471,694.92-76,951,095.88

Finding the Fourth Proportional to 206,378,237.04, 309,471,694.92 and 76,951,095.88

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Solution

The fourth proportional to 206,378,237.04, 309,471,694.92 and 76,951,095.88 is: 115,390,975.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,378,237.04 : 309,471,694.92 = 76,951,095.88 : x
  2. Step 2: Convert to fraction form
    206,378,237.04/309,471,694.92 = 76,951,095.88/x
  3. Step 3: Cross multiply
    206,378,237.04x = 309,471,694.92 × 76,951,095.88
  4. Step 4: Simplify right side
    206,378,237.04x = 23,814,186,067,935,028
  5. Step 5: Solve for x
    x = 23,814,186,067,935,028/206,378,237.04
  6. Step 6: Final answer
    x = 115,390,975.37

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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.