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Finding the Third Proportional to 13,241,680 and 20,247,431

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Solution

The third proportional to 13,241,680 and 20,247,431 is: 30,959,701.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,241,680 : 20,247,431 = 20,247,431 : x
  2. Step 2: Convert to fraction form
    13,241,680/20,247,431 = 20,247,431/x
  3. Step 3: Cross multiply
    13,241,680x = 20,247,431 × 20,247,431
  4. Step 4: Simplify right side
    13,241,680x = 409,958,462,099,761
  5. Step 5: Solve for x
    x = 409,958,462,099,761/13,241,680
  6. Step 6: Final answer
    x = 30,959,701.65

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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.