Home / 3,969,703.65-5,479,424.51-3,155,352.33

Finding the Fourth Proportional to 3,969,703.65, 5,479,424.51 and 3,155,352.33

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Solution

The fourth proportional to 3,969,703.65, 5,479,424.51 and 3,155,352.33 is: 4,355,366.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969,703.65 : 5,479,424.51 = 3,155,352.33 : x
  2. Step 2: Convert to fraction form
    3,969,703.65/5,479,424.51 = 3,155,352.33/x
  3. Step 3: Cross multiply
    3,969,703.65x = 5,479,424.51 × 3,155,352.33
  4. Step 4: Simplify right side
    3,969,703.65x = 17,289,514,894,687.61
  5. Step 5: Solve for x
    x = 17,289,514,894,687.61/3,969,703.65
  6. Step 6: Final answer
    x = 4,355,366.65

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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.