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Finding the Third Proportional to 4,012,489 and 8,679,437

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Solution

The third proportional to 4,012,489 and 8,679,437 is: 18,774,537.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,012,489 : 8,679,437 = 8,679,437 : x
  2. Step 2: Convert to fraction form
    4,012,489/8,679,437 = 8,679,437/x
  3. Step 3: Cross multiply
    4,012,489x = 8,679,437 × 8,679,437
  4. Step 4: Simplify right side
    4,012,489x = 75,332,626,636,969
  5. Step 5: Solve for x
    x = 75,332,626,636,969/4,012,489
  6. Step 6: Final answer
    x = 18,774,537.86

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.