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Finding the Third Proportional to 4,321,190 and 9,439,668

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Solution

The third proportional to 4,321,190 and 9,439,668 is: 20,621,016.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,321,190 : 9,439,668 = 9,439,668 : x
  2. Step 2: Convert to fraction form
    4,321,190/9,439,668 = 9,439,668/x
  3. Step 3: Cross multiply
    4,321,190x = 9,439,668 × 9,439,668
  4. Step 4: Simplify right side
    4,321,190x = 89,107,331,950,224
  5. Step 5: Solve for x
    x = 89,107,331,950,224/4,321,190
  6. Step 6: Final answer
    x = 20,621,016.88

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.