Home / 5,015,500.21-6,921,470.42-2,839,984.39

Finding the Fourth Proportional to 5,015,500.21, 6,921,470.42 and 2,839,984.39

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Solution

The fourth proportional to 5,015,500.21, 6,921,470.42 and 2,839,984.39 is: 3,919,223.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015,500.21 : 6,921,470.42 = 2,839,984.39 : x
  2. Step 2: Convert to fraction form
    5,015,500.21/6,921,470.42 = 2,839,984.39/x
  3. Step 3: Cross multiply
    5,015,500.21x = 6,921,470.42 × 2,839,984.39
  4. Step 4: Simplify right side
    5,015,500.21x = 19,656,867,948,646.75
  5. Step 5: Solve for x
    x = 19,656,867,948,646.75/5,015,500.21
  6. Step 6: Final answer
    x = 3,919,223.83

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1.5x scale

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.