Home / 7,158,796.29-9,879,140.49-3,939,532.29

Finding the Fourth Proportional to 7,158,796.29, 9,879,140.49 and 3,939,532.29

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Solution

The fourth proportional to 7,158,796.29, 9,879,140.49 and 3,939,532.29 is: 5,436,555.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158,796.29 : 9,879,140.49 = 3,939,532.29 : x
  2. Step 2: Convert to fraction form
    7,158,796.29/9,879,140.49 = 3,939,532.29/x
  3. Step 3: Cross multiply
    7,158,796.29x = 9,879,140.49 × 3,939,532.29
  4. Step 4: Simplify right side
    7,158,796.29x = 38,919,192,888,708.05
  5. Step 5: Solve for x
    x = 38,919,192,888,708.05/7,158,796.29
  6. Step 6: Final answer
    x = 5,436,555.44

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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.