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Finding the Third Proportional to 6,857,515 and 9,340,255

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Solution

The third proportional to 6,857,515 and 9,340,255 is: 12,721,862.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,857,515 : 9,340,255 = 9,340,255 : x
  2. Step 2: Convert to fraction form
    6,857,515/9,340,255 = 9,340,255/x
  3. Step 3: Cross multiply
    6,857,515x = 9,340,255 × 9,340,255
  4. Step 4: Simplify right side
    6,857,515x = 87,240,363,465,025
  5. Step 5: Solve for x
    x = 87,240,363,465,025/6,857,515
  6. Step 6: Final answer
    x = 12,721,862.58

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.