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Finding the Third Proportional to 20,343,888 and 30,515,872.50

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Solution

The third proportional to 20,343,888 and 30,515,872.50 is: 45,773,869.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,343,888 : 30,515,872.50 = 30,515,872.50 : x
  2. Step 2: Convert to fraction form
    20,343,888/30,515,872.50 = 30,515,872.50/x
  3. Step 3: Cross multiply
    20,343,888x = 30,515,872.50 × 30,515,872.50
  4. Step 4: Simplify right side
    20,343,888x = 931,218,474,436,256.25
  5. Step 5: Solve for x
    x = 931,218,474,436,256.25/20,343,888
  6. Step 6: Final answer
    x = 45,773,869.50

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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.