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Finding the Third Proportional to 12,867,865.88 and 28,286,020.13

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Solution

The third proportional to 12,867,865.88 and 28,286,020.13 is: 62,178,059.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867,865.88 : 28,286,020.13 = 28,286,020.13 : x
  2. Step 2: Convert to fraction form
    12,867,865.88/28,286,020.13 = 28,286,020.13/x
  3. Step 3: Cross multiply
    12,867,865.88x = 28,286,020.13 × 28,286,020.13
  4. Step 4: Simplify right side
    12,867,865.88x = 800,098,934,511,905
  5. Step 5: Solve for x
    x = 800,098,934,511,905/12,867,865.88
  6. Step 6: Final answer
    x = 62,178,059.85

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.