Home / 18,148,979.80-27,223,469.70-13,047,146.20

Finding the Fourth Proportional to 18,148,979.80, 27,223,469.70 and 13,047,146.20

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Solution

The fourth proportional to 18,148,979.80, 27,223,469.70 and 13,047,146.20 is: 19,570,719.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,148,979.80 : 27,223,469.70 = 13,047,146.20 : x
  2. Step 2: Convert to fraction form
    18,148,979.80/27,223,469.70 = 13,047,146.20/x
  3. Step 3: Cross multiply
    18,148,979.80x = 27,223,469.70 × 13,047,146.20
  4. Step 4: Simplify right side
    18,148,979.80x = 355,188,589,247,170.12
  5. Step 5: Solve for x
    x = 355,188,589,247,170.12/18,148,979.80
  6. Step 6: Final answer
    x = 19,570,719.30

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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.