Home / 12,115,828.80-18,173,743.20-4,439,458.80

Finding the Fourth Proportional to 12,115,828.80, 18,173,743.20 and 4,439,458.80

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Solution

The fourth proportional to 12,115,828.80, 18,173,743.20 and 4,439,458.80 is: 6,659,188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115,828.80 : 18,173,743.20 = 4,439,458.80 : x
  2. Step 2: Convert to fraction form
    12,115,828.80/18,173,743.20 = 4,439,458.80/x
  3. Step 3: Cross multiply
    12,115,828.80x = 18,173,743.20 × 4,439,458.80
  4. Step 4: Simplify right side
    12,115,828.80x = 80,681,584,178,180.16
  5. Step 5: Solve for x
    x = 80,681,584,178,180.16/12,115,828.80
  6. Step 6: Final answer
    x = 6,659,188.20

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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.