Home / 209,284,831.62-313,716,217.10-131,617,241.78

Finding the Fourth Proportional to 209,284,831.62, 313,716,217.10 and 131,617,241.78

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Solution

The fourth proportional to 209,284,831.62, 313,716,217.10 and 131,617,241.78 is: 197,293,147.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,284,831.62 : 313,716,217.10 = 131,617,241.78 : x
  2. Step 2: Convert to fraction form
    209,284,831.62/313,716,217.10 = 131,617,241.78/x
  3. Step 3: Cross multiply
    209,284,831.62x = 313,716,217.10 × 131,617,241.78
  4. Step 4: Simplify right side
    209,284,831.62x = 41,290,463,194,131,008
  5. Step 5: Solve for x
    x = 41,290,463,194,131,008/209,284,831.62
  6. Step 6: Final answer
    x = 197,293,147.69

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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.