Home / 5,168,079-7,131,949.02-2,876,780.97

Finding the Fourth Proportional to 5,168,079, 7,131,949.02 and 2,876,780.97

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Solution

The fourth proportional to 5,168,079, 7,131,949.02 and 2,876,780.97 is: 3,969,957.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168,079 : 7,131,949.02 = 2,876,780.97 : x
  2. Step 2: Convert to fraction form
    5,168,079/7,131,949.02 = 2,876,780.97/x
  3. Step 3: Cross multiply
    5,168,079x = 7,131,949.02 × 2,876,780.97
  4. Step 4: Simplify right side
    5,168,079x = 20,517,055,219,746.15
  5. Step 5: Solve for x
    x = 20,517,055,219,746.15/5,168,079
  6. Step 6: Final answer
    x = 3,969,957.74

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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.