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Finding the Third Proportional to 20,408,128 and 30,936,108

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Solution

The third proportional to 20,408,128 and 30,936,108 is: 46,895,177.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408,128 : 30,936,108 = 30,936,108 : x
  2. Step 2: Convert to fraction form
    20,408,128/30,936,108 = 30,936,108/x
  3. Step 3: Cross multiply
    20,408,128x = 30,936,108 × 30,936,108
  4. Step 4: Simplify right side
    20,408,128x = 957,042,778,187,664
  5. Step 5: Solve for x
    x = 957,042,778,187,664/20,408,128
  6. Step 6: Final answer
    x = 46,895,177.17

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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.