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Finding the Third Proportional to 20,431,080 and 30,469,445

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Solution

The third proportional to 20,431,080 and 30,469,445 is: 45,439,941.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,431,080 : 30,469,445 = 30,469,445 : x
  2. Step 2: Convert to fraction form
    20,431,080/30,469,445 = 30,469,445/x
  3. Step 3: Cross multiply
    20,431,080x = 30,469,445 × 30,469,445
  4. Step 4: Simplify right side
    20,431,080x = 928,387,078,608,025
  5. Step 5: Solve for x
    x = 928,387,078,608,025/20,431,080
  6. Step 6: Final answer
    x = 45,439,941.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.