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Finding the Fourth Proportional to 28,978,751.43, 43,469,616.11 and 7,413,540.21

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Solution

The fourth proportional to 28,978,751.43, 43,469,616.11 and 7,413,540.21 is: 11,120,691.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,978,751.43 : 43,469,616.11 = 7,413,540.21 : x
  2. Step 2: Convert to fraction form
    28,978,751.43/43,469,616.11 = 7,413,540.21/x
  3. Step 3: Cross multiply
    28,978,751.43x = 43,469,616.11 × 7,413,540.21
  4. Step 4: Simplify right side
    28,978,751.43x = 322,263,746,907,681.06
  5. Step 5: Solve for x
    x = 322,263,746,907,681.06/28,978,751.43
  6. Step 6: Final answer
    x = 11,120,691.23

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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.