Home / 202,145,939.96-278,961,396.93-109,326,447.69

Finding the Fourth Proportional to 202,145,939.96, 278,961,396.93 and 109,326,447.69

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Solution

The fourth proportional to 202,145,939.96, 278,961,396.93 and 109,326,447.69 is: 150,870,497.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,145,939.96 : 278,961,396.93 = 109,326,447.69 : x
  2. Step 2: Convert to fraction form
    202,145,939.96/278,961,396.93 = 109,326,447.69/x
  3. Step 3: Cross multiply
    202,145,939.96x = 278,961,396.93 × 109,326,447.69
  4. Step 4: Simplify right side
    202,145,939.96x = 30,497,858,568,996,972
  5. Step 5: Solve for x
    x = 30,497,858,568,996,972/202,145,939.96
  6. Step 6: Final answer
    x = 150,870,497.70

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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.