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Finding the Third Proportional to 3,912,103 and 8,402,668

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Solution

The third proportional to 3,912,103 and 8,402,668 is: 18,047,794.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912,103 : 8,402,668 = 8,402,668 : x
  2. Step 2: Convert to fraction form
    3,912,103/8,402,668 = 8,402,668/x
  3. Step 3: Cross multiply
    3,912,103x = 8,402,668 × 8,402,668
  4. Step 4: Simplify right side
    3,912,103x = 70,604,829,518,224
  5. Step 5: Solve for x
    x = 70,604,829,518,224/3,912,103
  6. Step 6: Final answer
    x = 18,047,794.12

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.