Home / 303,393,643.20-455,090,464.80-131,206,759.20

Finding the Fourth Proportional to 303,393,643.20, 455,090,464.80 and 131,206,759.20

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Solution

The fourth proportional to 303,393,643.20, 455,090,464.80 and 131,206,759.20 is: 196,810,138.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,393,643.20 : 455,090,464.80 = 131,206,759.20 : x
  2. Step 2: Convert to fraction form
    303,393,643.20/455,090,464.80 = 131,206,759.20/x
  3. Step 3: Cross multiply
    303,393,643.20x = 455,090,464.80 × 131,206,759.20
  4. Step 4: Simplify right side
    303,393,643.20x = 59,710,945,029,229,680
  5. Step 5: Solve for x
    x = 59,710,945,029,229,680/303,393,643.20
  6. Step 6: Final answer
    x = 196,810,138.80

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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.