Home / 139,968,344.70-209,952,517.05-71,093,591.10

Finding the Fourth Proportional to 139,968,344.70, 209,952,517.05 and 71,093,591.10

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Solution

The fourth proportional to 139,968,344.70, 209,952,517.05 and 71,093,591.10 is: 106,640,386.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,344.70 : 209,952,517.05 = 71,093,591.10 : x
  2. Step 2: Convert to fraction form
    139,968,344.70/209,952,517.05 = 71,093,591.10/x
  3. Step 3: Cross multiply
    139,968,344.70x = 209,952,517.05 × 71,093,591.10
  4. Step 4: Simplify right side
    139,968,344.70x = 14,926,278,397,568,478
  5. Step 5: Solve for x
    x = 14,926,278,397,568,478/139,968,344.70
  6. Step 6: Final answer
    x = 106,640,386.65

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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.