Home / 72,609,297.28-100,197,912.96-39,568,844.80

Finding the Fourth Proportional to 72,609,297.28, 100,197,912.96 and 39,568,844.80

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Solution

The fourth proportional to 72,609,297.28, 100,197,912.96 and 39,568,844.80 is: 54,603,416.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,609,297.28 : 100,197,912.96 = 39,568,844.80 : x
  2. Step 2: Convert to fraction form
    72,609,297.28/100,197,912.96 = 39,568,844.80/x
  3. Step 3: Cross multiply
    72,609,297.28x = 100,197,912.96 × 39,568,844.80
  4. Step 4: Simplify right side
    72,609,297.28x = 3,964,715,667,198,148
  5. Step 5: Solve for x
    x = 3,964,715,667,198,148/72,609,297.28
  6. Step 6: Final answer
    x = 54,603,416.03

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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.