Home / 20,081,821.38-30,105,064.89-7,959,793.38

Finding the Fourth Proportional to 20,081,821.38, 30,105,064.89 and 7,959,793.38

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Solution

The fourth proportional to 20,081,821.38, 30,105,064.89 and 7,959,793.38 is: 11,932,687.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081,821.38 : 30,105,064.89 = 7,959,793.38 : x
  2. Step 2: Convert to fraction form
    20,081,821.38/30,105,064.89 = 7,959,793.38/x
  3. Step 3: Cross multiply
    20,081,821.38x = 30,105,064.89 × 7,959,793.38
  4. Step 4: Simplify right side
    20,081,821.38x = 239,630,096,215,892.44
  5. Step 5: Solve for x
    x = 239,630,096,215,892.44/20,081,821.38
  6. Step 6: Final answer
    x = 11,932,687.36

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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.