Home / 18,761,371.23-28,141,761.20-5,981,789.82

Finding the Fourth Proportional to 18,761,371.23, 28,141,761.20 and 5,981,789.82

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Solution

The fourth proportional to 18,761,371.23, 28,141,761.20 and 5,981,789.82 is: 8,972,590.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,761,371.23 : 28,141,761.20 = 5,981,789.82 : x
  2. Step 2: Convert to fraction form
    18,761,371.23/28,141,761.20 = 5,981,789.82/x
  3. Step 3: Cross multiply
    18,761,371.23x = 28,141,761.20 × 5,981,789.82
  4. Step 4: Simplify right side
    18,761,371.23x = 168,338,100,633,122.03
  5. Step 5: Solve for x
    x = 168,338,100,633,122.03/18,761,371.23
  6. Step 6: Final answer
    x = 8,972,590.47

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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.