Home / 36,378,721.20-54,568,081.80-18,185,724.30

Finding the Fourth Proportional to 36,378,721.20, 54,568,081.80 and 18,185,724.30

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Solution

The fourth proportional to 36,378,721.20, 54,568,081.80 and 18,185,724.30 is: 27,278,586.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,378,721.20 : 54,568,081.80 = 18,185,724.30 : x
  2. Step 2: Convert to fraction form
    36,378,721.20/54,568,081.80 = 18,185,724.30/x
  3. Step 3: Cross multiply
    36,378,721.20x = 54,568,081.80 × 18,185,724.30
  4. Step 4: Simplify right side
    36,378,721.20x = 992,360,091,194,647.75
  5. Step 5: Solve for x
    x = 992,360,091,194,647.75/36,378,721.20
  6. Step 6: Final answer
    x = 27,278,586.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.