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Finding the Third Proportional to 12,859,612 and 19,894,110

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Solution

The third proportional to 12,859,612 and 19,894,110 is: 30,776,637.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,859,612 : 19,894,110 = 19,894,110 : x
  2. Step 2: Convert to fraction form
    12,859,612/19,894,110 = 19,894,110/x
  3. Step 3: Cross multiply
    12,859,612x = 19,894,110 × 19,894,110
  4. Step 4: Simplify right side
    12,859,612x = 395,775,612,692,100
  5. Step 5: Solve for x
    x = 395,775,612,692,100/12,859,612
  6. Step 6: Final answer
    x = 30,776,637.17

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.