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Finding the Third Proportional to 4,042,917 and 8,758,147.50

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Solution

The third proportional to 4,042,917 and 8,758,147.50 is: 18,972,723.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,042,917 : 8,758,147.50 = 8,758,147.50 : x
  2. Step 2: Convert to fraction form
    4,042,917/8,758,147.50 = 8,758,147.50/x
  3. Step 3: Cross multiply
    4,042,917x = 8,758,147.50 × 8,758,147.50
  4. Step 4: Simplify right side
    4,042,917x = 76,705,147,631,756.25
  5. Step 5: Solve for x
    x = 76,705,147,631,756.25/4,042,917
  6. Step 6: Final answer
    x = 18,972,723.81

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.