Home / 13,212,456.75-20,213,605.69

Finding the Third Proportional to 13,212,456.75 and 20,213,605.69

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Solution

The third proportional to 13,212,456.75 and 20,213,605.69 is: 30,924,593.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212,456.75 : 20,213,605.69 = 20,213,605.69 : x
  2. Step 2: Convert to fraction form
    13,212,456.75/20,213,605.69 = 20,213,605.69/x
  3. Step 3: Cross multiply
    13,212,456.75x = 20,213,605.69 × 20,213,605.69
  4. Step 4: Simplify right side
    13,212,456.75x = 408,589,854,889,732.38
  5. Step 5: Solve for x
    x = 408,589,854,889,732.38/13,212,456.75
  6. Step 6: Final answer
    x = 30,924,593.56

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.