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Finding the Third Proportional to 12,817,107.75 and 18,315,351

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Solution

The third proportional to 12,817,107.75 and 18,315,351 is: 26,172,213.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,817,107.75 : 18,315,351 = 18,315,351 : x
  2. Step 2: Convert to fraction form
    12,817,107.75/18,315,351 = 18,315,351/x
  3. Step 3: Cross multiply
    12,817,107.75x = 18,315,351 × 18,315,351
  4. Step 4: Simplify right side
    12,817,107.75x = 335,452,082,253,201
  5. Step 5: Solve for x
    x = 335,452,082,253,201/12,817,107.75
  6. Step 6: Final answer
    x = 26,172,213.64

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.