Home / 6,789,578.85-9,369,865.19-3,889,530.21

Finding the Fourth Proportional to 6,789,578.85, 9,369,865.19 and 3,889,530.21

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Solution

The fourth proportional to 6,789,578.85, 9,369,865.19 and 3,889,530.21 is: 5,367,692.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,789,578.85 : 9,369,865.19 = 3,889,530.21 : x
  2. Step 2: Convert to fraction form
    6,789,578.85/9,369,865.19 = 3,889,530.21/x
  3. Step 3: Cross multiply
    6,789,578.85x = 9,369,865.19 × 3,889,530.21
  4. Step 4: Simplify right side
    6,789,578.85x = 36,444,373,720,132.39
  5. Step 5: Solve for x
    x = 36,444,373,720,132.39/6,789,578.85
  6. Step 6: Final answer
    x = 5,367,692.83

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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.