Home / 15,079,942.56-20,810,091.92-8,204,267.68

Finding the Fourth Proportional to 15,079,942.56, 20,810,091.92 and 8,204,267.68

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Solution

The fourth proportional to 15,079,942.56, 20,810,091.92 and 8,204,267.68 is: 11,321,764.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,079,942.56 : 20,810,091.92 = 8,204,267.68 : x
  2. Step 2: Convert to fraction form
    15,079,942.56/20,810,091.92 = 8,204,267.68/x
  3. Step 3: Cross multiply
    15,079,942.56x = 20,810,091.92 × 8,204,267.68
  4. Step 4: Simplify right side
    15,079,942.56x = 170,731,564,557,085.16
  5. Step 5: Solve for x
    x = 170,731,564,557,085.16/15,079,942.56
  6. Step 6: Final answer
    x = 11,321,764.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.