Home / 7,045,452.87-9,723,128.09-3,948,976.75

Finding the Fourth Proportional to 7,045,452.87, 9,723,128.09 and 3,948,976.75

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Solution

The fourth proportional to 7,045,452.87, 9,723,128.09 and 3,948,976.75 is: 5,449,813.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,045,452.87 : 9,723,128.09 = 3,948,976.75 : x
  2. Step 2: Convert to fraction form
    7,045,452.87/9,723,128.09 = 3,948,976.75/x
  3. Step 3: Cross multiply
    7,045,452.87x = 9,723,128.09 × 3,948,976.75
  4. Step 4: Simplify right side
    7,045,452.87x = 38,396,406,772,179.56
  5. Step 5: Solve for x
    x = 38,396,406,772,179.56/7,045,452.87
  6. Step 6: Final answer
    x = 5,449,813.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.