Home / 28,979,801.20-43,469,391.80-7,414,231.60

Finding the Fourth Proportional to 28,979,801.20, 43,469,391.80 and 7,414,231.60

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Solution

The fourth proportional to 28,979,801.20, 43,469,391.80 and 7,414,231.60 is: 11,121,268.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979,801.20 : 43,469,391.80 = 7,414,231.60 : x
  2. Step 2: Convert to fraction form
    28,979,801.20/43,469,391.80 = 7,414,231.60/x
  3. Step 3: Cross multiply
    28,979,801.20x = 43,469,391.80 × 7,414,231.60
  4. Step 4: Simplify right side
    28,979,801.20x = 322,292,138,316,340.81
  5. Step 5: Solve for x
    x = 322,292,138,316,340.81/28,979,801.20
  6. Step 6: Final answer
    x = 11,121,268.09

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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.