Home / 7,286,342.39-10,055,201.11-3,978,659.59

Finding the Fourth Proportional to 7,286,342.39, 10,055,201.11 and 3,978,659.59

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Solution

The fourth proportional to 7,286,342.39, 10,055,201.11 and 3,978,659.59 is: 5,490,576.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,286,342.39 : 10,055,201.11 = 3,978,659.59 : x
  2. Step 2: Convert to fraction form
    7,286,342.39/10,055,201.11 = 3,978,659.59/x
  3. Step 3: Cross multiply
    7,286,342.39x = 10,055,201.11 × 3,978,659.59
  4. Step 4: Simplify right side
    7,286,342.39x = 40,006,222,305,515.47
  5. Step 5: Solve for x
    x = 40,006,222,305,515.47/7,286,342.39
  6. Step 6: Final answer
    x = 5,490,576.78

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Similar ratio
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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.