Home / 12,148,855.20-18,226,047.60-7,097,565.60

Finding the Fourth Proportional to 12,148,855.20, 18,226,047.60 and 7,097,565.60

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Solution

The fourth proportional to 12,148,855.20, 18,226,047.60 and 7,097,565.60 is: 10,647,963.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148,855.20 : 18,226,047.60 = 7,097,565.60 : x
  2. Step 2: Convert to fraction form
    12,148,855.20/18,226,047.60 = 7,097,565.60/x
  3. Step 3: Cross multiply
    12,148,855.20x = 18,226,047.60 × 7,097,565.60
  4. Step 4: Simplify right side
    12,148,855.20x = 129,360,568,469,722.56
  5. Step 5: Solve for x
    x = 129,360,568,469,722.56/12,148,855.20
  6. Step 6: Final answer
    x = 10,647,963.64

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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.