Home / 28,387,285.72-42,580,928.58-8,958,480.85

Finding the Fourth Proportional to 28,387,285.72, 42,580,928.58 and 8,958,480.85

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Solution

The fourth proportional to 28,387,285.72, 42,580,928.58 and 8,958,480.85 is: 13,437,721.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,387,285.72 : 42,580,928.58 = 8,958,480.85 : x
  2. Step 2: Convert to fraction form
    28,387,285.72/42,580,928.58 = 8,958,480.85/x
  3. Step 3: Cross multiply
    28,387,285.72x = 42,580,928.58 × 8,958,480.85
  4. Step 4: Simplify right side
    28,387,285.72x = 381,460,433,259,147.69
  5. Step 5: Solve for x
    x = 381,460,433,259,147.69/28,387,285.72
  6. Step 6: Final answer
    x = 13,437,721.28

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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.