Home / 5,168,101.67-7,131,980.40-2,876,803.64

Finding the Fourth Proportional to 5,168,101.67, 7,131,980.40 and 2,876,803.64

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Solution

The fourth proportional to 5,168,101.67, 7,131,980.40 and 2,876,803.64 is: 3,969,989.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168,101.67 : 7,131,980.40 = 2,876,803.64 : x
  2. Step 2: Convert to fraction form
    5,168,101.67/7,131,980.40 = 2,876,803.64/x
  3. Step 3: Cross multiply
    5,168,101.67x = 7,131,980.40 × 2,876,803.64
  4. Step 4: Simplify right side
    5,168,101.67x = 20,517,307,175,128.66
  5. Step 5: Solve for x
    x = 20,517,307,175,128.66/5,168,101.67
  6. Step 6: Final answer
    x = 3,969,989.08

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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.