Home / 331,017,067.80-496,525,601.70-279,361,002.60

Finding the Fourth Proportional to 331,017,067.80, 496,525,601.70 and 279,361,002.60

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Solution

The fourth proportional to 331,017,067.80, 496,525,601.70 and 279,361,002.60 is: 419,041,503.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,017,067.80 : 496,525,601.70 = 279,361,002.60 : x
  2. Step 2: Convert to fraction form
    331,017,067.80/496,525,601.70 = 279,361,002.60/x
  3. Step 3: Cross multiply
    331,017,067.80x = 496,525,601.70 × 279,361,002.60
  4. Step 4: Simplify right side
    331,017,067.80x = 138,709,889,907,480,272
  5. Step 5: Solve for x
    x = 138,709,889,907,480,272/331,017,067.80
  6. Step 6: Final answer
    x = 419,041,503.90

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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.