Home / 209,284,639.80-313,715,928.54-131,617,050.66

Finding the Fourth Proportional to 209,284,639.80, 313,715,928.54 and 131,617,050.66

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Solution

The fourth proportional to 209,284,639.80, 313,715,928.54 and 131,617,050.66 is: 197,292,860.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,284,639.80 : 313,715,928.54 = 131,617,050.66 : x
  2. Step 2: Convert to fraction form
    209,284,639.80/313,715,928.54 = 131,617,050.66/x
  3. Step 3: Cross multiply
    209,284,639.80x = 313,715,928.54 × 131,617,050.66
  4. Step 4: Simplify right side
    209,284,639.80x = 41,290,365,259,498,120
  5. Step 5: Solve for x
    x = 41,290,365,259,498,120/209,284,639.80
  6. Step 6: Final answer
    x = 197,292,860.57

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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.