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Finding the Third Proportional to 20,402,432 and 43,107,511

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Solution

The third proportional to 20,402,432 and 43,107,511 is: 91,080,195.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,402,432 : 43,107,511 = 43,107,511 : x
  2. Step 2: Convert to fraction form
    20,402,432/43,107,511 = 43,107,511/x
  3. Step 3: Cross multiply
    20,402,432x = 43,107,511 × 43,107,511
  4. Step 4: Simplify right side
    20,402,432x = 1,858,257,504,615,121
  5. Step 5: Solve for x
    x = 1,858,257,504,615,121/20,402,432
  6. Step 6: Final answer
    x = 91,080,195.96

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.