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Finding the Third Proportional to 15,910,020 and 20,751,115.50

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Solution

The third proportional to 15,910,020 and 20,751,115.50 is: 27,065,257.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,910,020 : 20,751,115.50 = 20,751,115.50 : x
  2. Step 2: Convert to fraction form
    15,910,020/20,751,115.50 = 20,751,115.50/x
  3. Step 3: Cross multiply
    15,910,020x = 20,751,115.50 × 20,751,115.50
  4. Step 4: Simplify right side
    15,910,020x = 430,608,794,494,340.25
  5. Step 5: Solve for x
    x = 430,608,794,494,340.25/15,910,020
  6. Step 6: Final answer
    x = 27,065,257.90

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.