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Finding the Third Proportional to 15,728,874 and 21,250,710

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Solution

The third proportional to 15,728,874 and 21,250,710 is: 28,711,061.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,728,874 : 21,250,710 = 21,250,710 : x
  2. Step 2: Convert to fraction form
    15,728,874/21,250,710 = 21,250,710/x
  3. Step 3: Cross multiply
    15,728,874x = 21,250,710 × 21,250,710
  4. Step 4: Simplify right side
    15,728,874x = 451,592,675,504,100
  5. Step 5: Solve for x
    x = 451,592,675,504,100/15,728,874
  6. Step 6: Final answer
    x = 28,711,061.93

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.