Home / 20,500,339.32-28,290,596.76-11,207,930.76

Finding the Fourth Proportional to 20,500,339.32, 28,290,596.76 and 11,207,930.76

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Solution

The fourth proportional to 20,500,339.32, 28,290,596.76 and 11,207,930.76 is: 15,467,014.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,500,339.32 : 28,290,596.76 = 11,207,930.76 : x
  2. Step 2: Convert to fraction form
    20,500,339.32/28,290,596.76 = 11,207,930.76/x
  3. Step 3: Cross multiply
    20,500,339.32x = 28,290,596.76 × 11,207,930.76
  4. Step 4: Simplify right side
    20,500,339.32x = 317,079,049,645,160.38
  5. Step 5: Solve for x
    x = 317,079,049,645,160.38/20,500,339.32
  6. Step 6: Final answer
    x = 15,467,014.70

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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.