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Finding the Third Proportional to 13,980,800 and 18,888,931

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Solution

The third proportional to 13,980,800 and 18,888,931 is: 25,520,121.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980,800 : 18,888,931 = 18,888,931 : x
  2. Step 2: Convert to fraction form
    13,980,800/18,888,931 = 18,888,931/x
  3. Step 3: Cross multiply
    13,980,800x = 18,888,931 × 18,888,931
  4. Step 4: Simplify right side
    13,980,800x = 356,791,714,322,761
  5. Step 5: Solve for x
    x = 356,791,714,322,761/13,980,800
  6. Step 6: Final answer
    x = 25,520,121.48

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.