Home / 5,131,361.28-7,081,172.64-2,839,520.64

Finding the Fourth Proportional to 5,131,361.28, 7,081,172.64 and 2,839,520.64

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Solution

The fourth proportional to 5,131,361.28, 7,081,172.64 and 2,839,520.64 is: 3,918,479.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131,361.28 : 7,081,172.64 = 2,839,520.64 : x
  2. Step 2: Convert to fraction form
    5,131,361.28/7,081,172.64 = 2,839,520.64/x
  3. Step 3: Cross multiply
    5,131,361.28x = 7,081,172.64 × 2,839,520.64
  4. Step 4: Simplify right side
    5,131,361.28x = 20,107,135,866,683.29
  5. Step 5: Solve for x
    x = 20,107,135,866,683.29/5,131,361.28
  6. Step 6: Final answer
    x = 3,918,479.87

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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.