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Finding the Third Proportional to 2,920,655 and 6,391,885

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Solution

The third proportional to 2,920,655 and 6,391,885 is: 13,988,709.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920,655 : 6,391,885 = 6,391,885 : x
  2. Step 2: Convert to fraction form
    2,920,655/6,391,885 = 6,391,885/x
  3. Step 3: Cross multiply
    2,920,655x = 6,391,885 × 6,391,885
  4. Step 4: Simplify right side
    2,920,655x = 40,856,193,853,225
  5. Step 5: Solve for x
    x = 40,856,193,853,225/2,920,655
  6. Step 6: Final answer
    x = 13,988,709.33

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.