Home / 321,647,947.16-482,675,986.97-137,416,811.29

Finding the Fourth Proportional to 321,647,947.16, 482,675,986.97 and 137,416,811.29

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Solution

The fourth proportional to 321,647,947.16, 482,675,986.97 and 137,416,811.29 is: 206,212,399.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,647,947.16 : 482,675,986.97 = 137,416,811.29 : x
  2. Step 2: Convert to fraction form
    321,647,947.16/482,675,986.97 = 137,416,811.29/x
  3. Step 3: Cross multiply
    321,647,947.16x = 482,675,986.97 × 137,416,811.29
  4. Step 4: Simplify right side
    321,647,947.16x = 66,327,795,015,670,992
  5. Step 5: Solve for x
    x = 66,327,795,015,670,992/321,647,947.16
  6. Step 6: Final answer
    x = 206,212,399.62

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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.