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Finding the Third Proportional to 15,728,850 and 21,250,674

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Solution

The third proportional to 15,728,850 and 21,250,674 is: 28,711,008.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,728,850 : 21,250,674 = 21,250,674 : x
  2. Step 2: Convert to fraction form
    15,728,850/21,250,674 = 21,250,674/x
  3. Step 3: Cross multiply
    15,728,850x = 21,250,674 × 21,250,674
  4. Step 4: Simplify right side
    15,728,850x = 451,591,145,454,276
  5. Step 5: Solve for x
    x = 451,591,145,454,276/15,728,850
  6. Step 6: Final answer
    x = 28,711,008.46

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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.