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Finding the Third Proportional to 8,680,680 and 18,855,840

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Solution

The third proportional to 8,680,680 and 18,855,840 is: 40,957,932.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680,680 : 18,855,840 = 18,855,840 : x
  2. Step 2: Convert to fraction form
    8,680,680/18,855,840 = 18,855,840/x
  3. Step 3: Cross multiply
    8,680,680x = 18,855,840 × 18,855,840
  4. Step 4: Simplify right side
    8,680,680x = 355,542,702,105,600
  5. Step 5: Solve for x
    x = 355,542,702,105,600/8,680,680
  6. Step 6: Final answer
    x = 40,957,932.11

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.