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Finding the Third Proportional to 15,375,608 and 21,627,728

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Solution

The third proportional to 15,375,608 and 21,627,728 is: 30,422,121.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,375,608 : 21,627,728 = 21,627,728 : x
  2. Step 2: Convert to fraction form
    15,375,608/21,627,728 = 21,627,728/x
  3. Step 3: Cross multiply
    15,375,608x = 21,627,728 × 21,627,728
  4. Step 4: Simplify right side
    15,375,608x = 467,758,618,441,984
  5. Step 5: Solve for x
    x = 467,758,618,441,984/15,375,608
  6. Step 6: Final answer
    x = 30,422,121.74

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.