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Finding the Third Proportional to 13,515,432 and 27,988,990

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Solution

The third proportional to 13,515,432 and 27,988,990 is: 57,962,154.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515,432 : 27,988,990 = 27,988,990 : x
  2. Step 2: Convert to fraction form
    13,515,432/27,988,990 = 27,988,990/x
  3. Step 3: Cross multiply
    13,515,432x = 27,988,990 × 27,988,990
  4. Step 4: Simplify right side
    13,515,432x = 783,383,561,220,100
  5. Step 5: Solve for x
    x = 783,383,561,220,100/13,515,432
  6. Step 6: Final answer
    x = 57,962,154.76

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.