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Finding the Third Proportional to 12,691,810 and 19,335,147

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Solution

The third proportional to 12,691,810 and 19,335,147 is: 29,455,838.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,691,810 : 19,335,147 = 19,335,147 : x
  2. Step 2: Convert to fraction form
    12,691,810/19,335,147 = 19,335,147/x
  3. Step 3: Cross multiply
    12,691,810x = 19,335,147 × 19,335,147
  4. Step 4: Simplify right side
    12,691,810x = 373,847,909,511,609
  5. Step 5: Solve for x
    x = 373,847,909,511,609/12,691,810
  6. Step 6: Final answer
    x = 29,455,838.81

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.