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Finding the Third Proportional to 7,661,640 and 16,485,672

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Solution

The third proportional to 7,661,640 and 16,485,672 is: 35,472,481.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,661,640 : 16,485,672 = 16,485,672 : x
  2. Step 2: Convert to fraction form
    7,661,640/16,485,672 = 16,485,672/x
  3. Step 3: Cross multiply
    7,661,640x = 16,485,672 × 16,485,672
  4. Step 4: Simplify right side
    7,661,640x = 271,777,381,291,584
  5. Step 5: Solve for x
    x = 271,777,381,291,584/7,661,640
  6. Step 6: Final answer
    x = 35,472,481.26

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.