Home / 6,990,780.36-9,647,081.20-3,893,302.68

Finding the Fourth Proportional to 6,990,780.36, 9,647,081.20 and 3,893,302.68

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Solution

The fourth proportional to 6,990,780.36, 9,647,081.20 and 3,893,302.68 is: 5,372,648.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990,780.36 : 9,647,081.20 = 3,893,302.68 : x
  2. Step 2: Convert to fraction form
    6,990,780.36/9,647,081.20 = 3,893,302.68/x
  3. Step 3: Cross multiply
    6,990,780.36x = 9,647,081.20 × 3,893,302.68
  4. Step 4: Simplify right side
    6,990,780.36x = 37,559,007,090,137.62
  5. Step 5: Solve for x
    x = 37,559,007,090,137.62/6,990,780.36
  6. Step 6: Final answer
    x = 5,372,648.71

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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.