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Finding the Third Proportional to 15,395,869 and 21,524,330

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Solution

The third proportional to 15,395,869 and 21,524,330 is: 30,092,278.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,395,869 : 21,524,330 = 21,524,330 : x
  2. Step 2: Convert to fraction form
    15,395,869/21,524,330 = 21,524,330/x
  3. Step 3: Cross multiply
    15,395,869x = 21,524,330 × 21,524,330
  4. Step 4: Simplify right side
    15,395,869x = 463,296,781,948,900
  5. Step 5: Solve for x
    x = 463,296,781,948,900/15,395,869
  6. Step 6: Final answer
    x = 30,092,278.78

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.