Home / 7,167,982.70-9,891,811.77-3,948,718.70

Finding the Fourth Proportional to 7,167,982.70, 9,891,811.77 and 3,948,718.70

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Solution

The fourth proportional to 7,167,982.70, 9,891,811.77 and 3,948,718.70 is: 5,449,229.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,167,982.70 : 9,891,811.77 = 3,948,718.70 : x
  2. Step 2: Convert to fraction form
    7,167,982.70/9,891,811.77 = 3,948,718.70/x
  3. Step 3: Cross multiply
    7,167,982.70x = 9,891,811.77 × 3,948,718.70
  4. Step 4: Simplify right side
    7,167,982.70x = 39,059,982,113,079.10
  5. Step 5: Solve for x
    x = 39,059,982,113,079.10/7,167,982.70
  6. Step 6: Final answer
    x = 5,449,229.41

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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.