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Finding the Third Proportional to 18,970,659 and 40,818,568

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Solution

The third proportional to 18,970,659 and 40,818,568 is: 87,828,023.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,970,659 : 40,818,568 = 40,818,568 : x
  2. Step 2: Convert to fraction form
    18,970,659/40,818,568 = 40,818,568/x
  3. Step 3: Cross multiply
    18,970,659x = 40,818,568 × 40,818,568
  4. Step 4: Simplify right side
    18,970,659x = 1,666,155,493,570,624
  5. Step 5: Solve for x
    x = 1,666,155,493,570,624/18,970,659
  6. Step 6: Final answer
    x = 87,828,023.98

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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.