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Finding the Third Proportional to 13,212,427 and 20,213,529

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Solution

The third proportional to 13,212,427 and 20,213,529 is: 30,924,428.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212,427 : 20,213,529 = 20,213,529 : x
  2. Step 2: Convert to fraction form
    13,212,427/20,213,529 = 20,213,529/x
  3. Step 3: Cross multiply
    13,212,427x = 20,213,529 × 20,213,529
  4. Step 4: Simplify right side
    13,212,427x = 408,586,754,633,841
  5. Step 5: Solve for x
    x = 408,586,754,633,841/13,212,427
  6. Step 6: Final answer
    x = 30,924,428.54

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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.