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Finding the Third Proportional to 12,997,471 and 20,241,505

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Solution

The third proportional to 12,997,471 and 20,241,505 is: 31,522,942.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997,471 : 20,241,505 = 20,241,505 : x
  2. Step 2: Convert to fraction form
    12,997,471/20,241,505 = 20,241,505/x
  3. Step 3: Cross multiply
    12,997,471x = 20,241,505 × 20,241,505
  4. Step 4: Simplify right side
    12,997,471x = 409,718,524,665,025
  5. Step 5: Solve for x
    x = 409,718,524,665,025/12,997,471
  6. Step 6: Final answer
    x = 31,522,942.01

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.