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Finding the Third Proportional to 20,336,812 and 28,445,118

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Solution

The third proportional to 20,336,812 and 28,445,118 is: 39,786,213.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336,812 : 28,445,118 = 28,445,118 : x
  2. Step 2: Convert to fraction form
    20,336,812/28,445,118 = 28,445,118/x
  3. Step 3: Cross multiply
    20,336,812x = 28,445,118 × 28,445,118
  4. Step 4: Simplify right side
    20,336,812x = 809,124,738,033,924
  5. Step 5: Solve for x
    x = 809,124,738,033,924/20,336,812
  6. Step 6: Final answer
    x = 39,786,213.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.