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Finding the Third Proportional to 17,781,579 and 38,213,910

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Solution

The third proportional to 17,781,579 and 38,213,910 is: 82,124,479.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,781,579 : 38,213,910 = 38,213,910 : x
  2. Step 2: Convert to fraction form
    17,781,579/38,213,910 = 38,213,910/x
  3. Step 3: Cross multiply
    17,781,579x = 38,213,910 × 38,213,910
  4. Step 4: Simplify right side
    17,781,579x = 1,460,302,917,488,100
  5. Step 5: Solve for x
    x = 1,460,302,917,488,100/17,781,579
  6. Step 6: Final answer
    x = 82,124,479.36

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.