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Finding the Third Proportional to 20,939,383.50 and 31,431,234

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Solution

The third proportional to 20,939,383.50 and 31,431,234 is: 47,180,112.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,939,383.50 : 31,431,234 = 31,431,234 : x
  2. Step 2: Convert to fraction form
    20,939,383.50/31,431,234 = 31,431,234/x
  3. Step 3: Cross multiply
    20,939,383.50x = 31,431,234 × 31,431,234
  4. Step 4: Simplify right side
    20,939,383.50x = 987,922,470,762,756
  5. Step 5: Solve for x
    x = 987,922,470,762,756/20,939,383.50
  6. Step 6: Final answer
    x = 47,180,112.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.