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Finding the Third Proportional to 13,997,180 and 20,015,991

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Solution

The third proportional to 13,997,180 and 20,015,991 is: 28,622,900.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997,180 : 20,015,991 = 20,015,991 : x
  2. Step 2: Convert to fraction form
    13,997,180/20,015,991 = 20,015,991/x
  3. Step 3: Cross multiply
    13,997,180x = 20,015,991 × 20,015,991
  4. Step 4: Simplify right side
    13,997,180x = 400,639,895,712,081
  5. Step 5: Solve for x
    x = 400,639,895,712,081/13,997,180
  6. Step 6: Final answer
    x = 28,622,900.88

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.