Home / 20,540,145.38-31,787,987.63

Finding the Third Proportional to 20,540,145.38 and 31,787,987.63

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Solution

The third proportional to 20,540,145.38 and 31,787,987.63 is: 49,195,180.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,540,145.38 : 31,787,987.63 = 31,787,987.63 : x
  2. Step 2: Convert to fraction form
    20,540,145.38/31,787,987.63 = 31,787,987.63/x
  3. Step 3: Cross multiply
    20,540,145.38x = 31,787,987.63 × 31,787,987.63
  4. Step 4: Simplify right side
    20,540,145.38x = 1,010,476,157,247,153.12
  5. Step 5: Solve for x
    x = 1,010,476,157,247,153.12/20,540,145.38
  6. Step 6: Final answer
    x = 49,195,180.40

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.