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Finding the Third Proportional to 8,428,164 and 18,496,812

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Solution

The third proportional to 8,428,164 and 18,496,812 is: 40,593,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428,164 : 18,496,812 = 18,496,812 : x
  2. Step 2: Convert to fraction form
    8,428,164/18,496,812 = 18,496,812/x
  3. Step 3: Cross multiply
    8,428,164x = 18,496,812 × 18,496,812
  4. Step 4: Simplify right side
    8,428,164x = 342,132,054,163,344
  5. Step 5: Solve for x
    x = 342,132,054,163,344/8,428,164
  6. Step 6: Final answer
    x = 40,593,900.90

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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.