Home / 6,988,893.20-9,645,069.60-4,198,869.80

Finding the Fourth Proportional to 6,988,893.20, 9,645,069.60 and 4,198,869.80

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Solution

The fourth proportional to 6,988,893.20, 9,645,069.60 and 4,198,869.80 is: 5,794,678.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988,893.20 : 9,645,069.60 = 4,198,869.80 : x
  2. Step 2: Convert to fraction form
    6,988,893.20/9,645,069.60 = 4,198,869.80/x
  3. Step 3: Cross multiply
    6,988,893.20x = 9,645,069.60 × 4,198,869.80
  4. Step 4: Simplify right side
    6,988,893.20x = 40,498,391,462,338.08
  5. Step 5: Solve for x
    x = 40,498,391,462,338.08/6,988,893.20
  6. Step 6: Final answer
    x = 5,794,678.83

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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.