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Finding the Third Proportional to 6,517,288 and 9,115,890

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Solution

The third proportional to 6,517,288 and 9,115,890 is: 12,750,618.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,517,288 : 9,115,890 = 9,115,890 : x
  2. Step 2: Convert to fraction form
    6,517,288/9,115,890 = 9,115,890/x
  3. Step 3: Cross multiply
    6,517,288x = 9,115,890 × 9,115,890
  4. Step 4: Simplify right side
    6,517,288x = 83,099,450,492,100
  5. Step 5: Solve for x
    x = 83,099,450,492,100/6,517,288
  6. Step 6: Final answer
    x = 12,750,618.12

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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.