Home / 3,993,999.64-5,511,715.86-2,158,456.84

Finding the Fourth Proportional to 3,993,999.64, 5,511,715.86 and 2,158,456.84

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Solution

The fourth proportional to 3,993,999.64, 5,511,715.86 and 2,158,456.84 is: 2,978,668.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993,999.64 : 5,511,715.86 = 2,158,456.84 : x
  2. Step 2: Convert to fraction form
    3,993,999.64/5,511,715.86 = 2,158,456.84/x
  3. Step 3: Cross multiply
    3,993,999.64x = 5,511,715.86 × 2,158,456.84
  4. Step 4: Simplify right side
    3,993,999.64x = 11,896,800,798,153.48
  5. Step 5: Solve for x
    x = 11,896,800,798,153.48/3,993,999.64
  6. Step 6: Final answer
    x = 2,978,668.47

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1.5x scale

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.