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Finding the Third Proportional to 13,260,728 and 20,476,884

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Solution

The third proportional to 13,260,728 and 20,476,884 is: 31,619,891.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260,728 : 20,476,884 = 20,476,884 : x
  2. Step 2: Convert to fraction form
    13,260,728/20,476,884 = 20,476,884/x
  3. Step 3: Cross multiply
    13,260,728x = 20,476,884 × 20,476,884
  4. Step 4: Simplify right side
    13,260,728x = 419,302,778,349,456
  5. Step 5: Solve for x
    x = 419,302,778,349,456/13,260,728
  6. Step 6: Final answer
    x = 31,619,891.33

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.