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Finding the Third Proportional to 12,678,393 and 20,091,972

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Solution

The third proportional to 12,678,393 and 20,091,972 is: 31,840,576.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,678,393 : 20,091,972 = 20,091,972 : x
  2. Step 2: Convert to fraction form
    12,678,393/20,091,972 = 20,091,972/x
  3. Step 3: Cross multiply
    12,678,393x = 20,091,972 × 20,091,972
  4. Step 4: Simplify right side
    12,678,393x = 403,687,338,848,784
  5. Step 5: Solve for x
    x = 403,687,338,848,784/12,678,393
  6. Step 6: Final answer
    x = 31,840,576.23

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.