Home / 5,139,145.28-7,091,928.56-2,847,260

Finding the Fourth Proportional to 5,139,145.28, 7,091,928.56 and 2,847,260

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Solution

The fourth proportional to 5,139,145.28, 7,091,928.56 and 2,847,260 is: 3,929,167.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139,145.28 : 7,091,928.56 = 2,847,260 : x
  2. Step 2: Convert to fraction form
    5,139,145.28/7,091,928.56 = 2,847,260/x
  3. Step 3: Cross multiply
    5,139,145.28x = 7,091,928.56 × 2,847,260
  4. Step 4: Simplify right side
    5,139,145.28x = 20,192,564,511,745.60
  5. Step 5: Solve for x
    x = 20,192,564,511,745.60/5,139,145.28
  6. Step 6: Final answer
    x = 3,929,167.87

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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.