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Finding the Third Proportional to 3,330,917 and 7,167,031

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Solution

The third proportional to 3,330,917 and 7,167,031 is: 15,421,078.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330,917 : 7,167,031 = 7,167,031 : x
  2. Step 2: Convert to fraction form
    3,330,917/7,167,031 = 7,167,031/x
  3. Step 3: Cross multiply
    3,330,917x = 7,167,031 × 7,167,031
  4. Step 4: Simplify right side
    3,330,917x = 51,366,333,354,961
  5. Step 5: Solve for x
    x = 51,366,333,354,961/3,330,917
  6. Step 6: Final answer
    x = 15,421,078.75

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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.