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Finding the Third Proportional to 8,682,390 and 18,907,668

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Solution

The third proportional to 8,682,390 and 18,907,668 is: 41,175,288.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682,390 : 18,907,668 = 18,907,668 : x
  2. Step 2: Convert to fraction form
    8,682,390/18,907,668 = 18,907,668/x
  3. Step 3: Cross multiply
    8,682,390x = 18,907,668 × 18,907,668
  4. Step 4: Simplify right side
    8,682,390x = 357,499,909,198,224
  5. Step 5: Solve for x
    x = 357,499,909,198,224/8,682,390
  6. Step 6: Final answer
    x = 41,175,288.05

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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.