Home / 18,745,764.72-28,120,863.24-6,612,696.96

Finding the Fourth Proportional to 18,745,764.72, 28,120,863.24 and 6,612,696.96

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Solution

The fourth proportional to 18,745,764.72, 28,120,863.24 and 6,612,696.96 is: 9,919,827.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745,764.72 : 28,120,863.24 = 6,612,696.96 : x
  2. Step 2: Convert to fraction form
    18,745,764.72/28,120,863.24 = 6,612,696.96/x
  3. Step 3: Cross multiply
    18,745,764.72x = 28,120,863.24 × 6,612,696.96
  4. Step 4: Simplify right side
    18,745,764.72x = 185,954,746,859,723.75
  5. Step 5: Solve for x
    x = 185,954,746,859,723.75/18,745,764.72
  6. Step 6: Final answer
    x = 9,919,827.21

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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.