Home / 18,761,371.61-28,141,761.76-5,981,790.20

Finding the Fourth Proportional to 18,761,371.61, 28,141,761.76 and 5,981,790.20

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Solution

The fourth proportional to 18,761,371.61, 28,141,761.76 and 5,981,790.20 is: 8,972,591.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,761,371.61 : 28,141,761.76 = 5,981,790.20 : x
  2. Step 2: Convert to fraction form
    18,761,371.61/28,141,761.76 = 5,981,790.20/x
  3. Step 3: Cross multiply
    18,761,371.61x = 28,141,761.76 × 5,981,790.20
  4. Step 4: Simplify right side
    18,761,371.61x = 168,338,114,551,039.47
  5. Step 5: Solve for x
    x = 168,338,114,551,039.47/18,761,371.61
  6. Step 6: Final answer
    x = 8,972,591.03

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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.