Home / 5,251,427.72-7,872,647.78-2,015,287.38

Finding the Fourth Proportional to 5,251,427.72, 7,872,647.78 and 2,015,287.38

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Solution

The fourth proportional to 5,251,427.72, 7,872,647.78 and 2,015,287.38 is: 3,021,206.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251,427.72 : 7,872,647.78 = 2,015,287.38 : x
  2. Step 2: Convert to fraction form
    5,251,427.72/7,872,647.78 = 2,015,287.38/x
  3. Step 3: Cross multiply
    5,251,427.72x = 7,872,647.78 × 2,015,287.38
  4. Step 4: Simplify right side
    5,251,427.72x = 15,865,647,718,219.02
  5. Step 5: Solve for x
    x = 15,865,647,718,219.02/5,251,427.72
  6. Step 6: Final answer
    x = 3,021,206.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.