Home / 6,689,486.39-9,231,336.32-3,898,431.72

Finding the Fourth Proportional to 6,689,486.39, 9,231,336.32 and 3,898,431.72

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Solution

The fourth proportional to 6,689,486.39, 9,231,336.32 and 3,898,431.72 is: 5,379,745.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,689,486.39 : 9,231,336.32 = 3,898,431.72 : x
  2. Step 2: Convert to fraction form
    6,689,486.39/9,231,336.32 = 3,898,431.72/x
  3. Step 3: Cross multiply
    6,689,486.39x = 9,231,336.32 × 3,898,431.72
  4. Step 4: Simplify right side
    6,689,486.39x = 35,987,734,308,383.91
  5. Step 5: Solve for x
    x = 35,987,734,308,383.91/6,689,486.39
  6. Step 6: Final answer
    x = 5,379,745.50

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Double scale
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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.