Home / 28,387,286.72-42,580,930.08-8,958,481.86

Finding the Fourth Proportional to 28,387,286.72, 42,580,930.08 and 8,958,481.86

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Solution

The fourth proportional to 28,387,286.72, 42,580,930.08 and 8,958,481.86 is: 13,437,722.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,387,286.72 : 42,580,930.08 = 8,958,481.86 : x
  2. Step 2: Convert to fraction form
    28,387,286.72/42,580,930.08 = 8,958,481.86/x
  3. Step 3: Cross multiply
    28,387,286.72x = 42,580,930.08 × 8,958,481.86
  4. Step 4: Simplify right side
    28,387,286.72x = 381,460,489,703,608.31
  5. Step 5: Solve for x
    x = 381,460,489,703,608.31/28,387,286.72
  6. Step 6: Final answer
    x = 13,437,722.79

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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.