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Finding the Third Proportional to 8,424,775 and 18,191,988

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Solution

The third proportional to 8,424,775 and 18,191,988 is: 39,282,761.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424,775 : 18,191,988 = 18,191,988 : x
  2. Step 2: Convert to fraction form
    8,424,775/18,191,988 = 18,191,988/x
  3. Step 3: Cross multiply
    8,424,775x = 18,191,988 × 18,191,988
  4. Step 4: Simplify right side
    8,424,775x = 330,948,427,392,144
  5. Step 5: Solve for x
    x = 330,948,427,392,144/8,424,775
  6. Step 6: Final answer
    x = 39,282,761.54

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.