Home / 3,139,878.40-4,715,066.40-2,079,620.80

Finding the Fourth Proportional to 3,139,878.40, 4,715,066.40 and 2,079,620.80

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Solution

The fourth proportional to 3,139,878.40, 4,715,066.40 and 2,079,620.80 is: 3,122,907.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139,878.40 : 4,715,066.40 = 2,079,620.80 : x
  2. Step 2: Convert to fraction form
    3,139,878.40/4,715,066.40 = 2,079,620.80/x
  3. Step 3: Cross multiply
    3,139,878.40x = 4,715,066.40 × 2,079,620.80
  4. Step 4: Simplify right side
    3,139,878.40x = 9,805,550,158,821.12
  5. Step 5: Solve for x
    x = 9,805,550,158,821.12/3,139,878.40
  6. Step 6: Final answer
    x = 3,122,907.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.