Home / 3,969,702.65-5,479,423.13-3,155,351.33

Finding the Fourth Proportional to 3,969,702.65, 5,479,423.13 and 3,155,351.33

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Solution

The fourth proportional to 3,969,702.65, 5,479,423.13 and 3,155,351.33 is: 4,355,365.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969,702.65 : 5,479,423.13 = 3,155,351.33 : x
  2. Step 2: Convert to fraction form
    3,969,702.65/5,479,423.13 = 3,155,351.33/x
  3. Step 3: Cross multiply
    3,969,702.65x = 5,479,423.13 × 3,155,351.33
  4. Step 4: Simplify right side
    3,969,702.65x = 17,289,505,045,101.51
  5. Step 5: Solve for x
    x = 17,289,505,045,101.51/3,969,702.65
  6. Step 6: Final answer
    x = 4,355,365.27

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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.