Home / 262,080,067.20-393,120,100.80-80,303,625.60

Finding the Fourth Proportional to 262,080,067.20, 393,120,100.80 and 80,303,625.60

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Solution

The fourth proportional to 262,080,067.20, 393,120,100.80 and 80,303,625.60 is: 120,455,438.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,080,067.20 : 393,120,100.80 = 80,303,625.60 : x
  2. Step 2: Convert to fraction form
    262,080,067.20/393,120,100.80 = 80,303,625.60/x
  3. Step 3: Cross multiply
    262,080,067.20x = 393,120,100.80 × 80,303,625.60
  4. Step 4: Simplify right side
    262,080,067.20x = 31,568,969,390,477,460
  5. Step 5: Solve for x
    x = 31,568,969,390,477,460/262,080,067.20
  6. Step 6: Final answer
    x = 120,455,438.40

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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.