Home / 20,179,013.80-30,268,520.70-18,265,826.20

Finding the Fourth Proportional to 20,179,013.80, 30,268,520.70 and 18,265,826.20

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Solution

The fourth proportional to 20,179,013.80, 30,268,520.70 and 18,265,826.20 is: 27,398,739.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179,013.80 : 30,268,520.70 = 18,265,826.20 : x
  2. Step 2: Convert to fraction form
    20,179,013.80/30,268,520.70 = 18,265,826.20/x
  3. Step 3: Cross multiply
    20,179,013.80x = 30,268,520.70 × 18,265,826.20
  4. Step 4: Simplify right side
    20,179,013.80x = 552,879,538,437,302.31
  5. Step 5: Solve for x
    x = 552,879,538,437,302.31/20,179,013.80
  6. Step 6: Final answer
    x = 27,398,739.30

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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.