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Finding the Third Proportional to 20,503,128 and 45,099,012

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Solution

The third proportional to 20,503,128 and 45,099,012 is: 99,200,516.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,503,128 : 45,099,012 = 45,099,012 : x
  2. Step 2: Convert to fraction form
    20,503,128/45,099,012 = 45,099,012/x
  3. Step 3: Cross multiply
    20,503,128x = 45,099,012 × 45,099,012
  4. Step 4: Simplify right side
    20,503,128x = 2,033,920,883,376,144
  5. Step 5: Solve for x
    x = 2,033,920,883,376,144/20,503,128
  6. Step 6: Final answer
    x = 99,200,516.30

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.