Home / 28,341,876.92-42,519,561.93-9,172,633.97

Finding the Fourth Proportional to 28,341,876.92, 42,519,561.93 and 9,172,633.97

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Solution

The fourth proportional to 28,341,876.92, 42,519,561.93 and 9,172,633.97 is: 13,761,134.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,341,876.92 : 42,519,561.93 = 9,172,633.97 : x
  2. Step 2: Convert to fraction form
    28,341,876.92/42,519,561.93 = 9,172,633.97/x
  3. Step 3: Cross multiply
    28,341,876.92x = 42,519,561.93 × 9,172,633.97
  4. Step 4: Simplify right side
    28,341,876.92x = 390,016,378,096,659.19
  5. Step 5: Solve for x
    x = 390,016,378,096,659.19/28,341,876.92
  6. Step 6: Final answer
    x = 13,761,134.43

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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.