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Finding the Third Proportional to 13,131,769.50 and 20,978,291.25

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Solution

The third proportional to 13,131,769.50 and 20,978,291.25 is: 33,513,282.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,131,769.50 : 20,978,291.25 = 20,978,291.25 : x
  2. Step 2: Convert to fraction form
    13,131,769.50/20,978,291.25 = 20,978,291.25/x
  3. Step 3: Cross multiply
    13,131,769.50x = 20,978,291.25 × 20,978,291.25
  4. Step 4: Simplify right side
    13,131,769.50x = 440,088,703,769,826.56
  5. Step 5: Solve for x
    x = 440,088,703,769,826.56/13,131,769.50
  6. Step 6: Final answer
    x = 33,513,282.71

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.