Home / 28,278,469,540.85-42,422,062,791.80-9,641,606,917.50

Finding the Fourth Proportional to 28,278,469,540.85, 42,422,062,791.80 and 9,641,606,917.50

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Solution

The fourth proportional to 28,278,469,540.85, 42,422,062,791.80 and 9,641,606,917.50 is: 14,463,896,409.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,278,469,540.85 : 42,422,062,791.80 = 9,641,606,917.50 : x
  2. Step 2: Convert to fraction form
    28,278,469,540.85/42,422,062,791.80 = 9,641,606,917.50/x
  3. Step 3: Cross multiply
    28,278,469,540.85x = 42,422,062,791.80 × 9,641,606,917.50
  4. Step 4: Simplify right side
    28,278,469,540.85x = 409,016,854,068,057,538,560
  5. Step 5: Solve for x
    x = 409,016,854,068,057,538,560/28,278,469,540.85
  6. Step 6: Final answer
    x = 14,463,896,409.86

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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.