Home / 20,079,910.40-27,709,215.82-11,378,187.32

Finding the Fourth Proportional to 20,079,910.40, 27,709,215.82 and 11,378,187.32

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Solution

The fourth proportional to 20,079,910.40, 27,709,215.82 and 11,378,187.32 is: 15,701,297.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079,910.40 : 27,709,215.82 = 11,378,187.32 : x
  2. Step 2: Convert to fraction form
    20,079,910.40/27,709,215.82 = 11,378,187.32/x
  3. Step 3: Cross multiply
    20,079,910.40x = 27,709,215.82 × 11,378,187.32
  4. Step 4: Simplify right side
    20,079,910.40x = 315,280,647,923,275.81
  5. Step 5: Solve for x
    x = 315,280,647,923,275.81/20,079,910.40
  6. Step 6: Final answer
    x = 15,701,297.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.