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Finding the Third Proportional to 20,451,872 and 45,443,769

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Solution

The third proportional to 20,451,872 and 45,443,769 is: 100,975,409.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,451,872 : 45,443,769 = 45,443,769 : x
  2. Step 2: Convert to fraction form
    20,451,872/45,443,769 = 45,443,769/x
  3. Step 3: Cross multiply
    20,451,872x = 45,443,769 × 45,443,769
  4. Step 4: Simplify right side
    20,451,872x = 2,065,136,140,925,361
  5. Step 5: Solve for x
    x = 2,065,136,140,925,361/20,451,872
  6. Step 6: Final answer
    x = 100,975,409.04

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.