Home / 280,795,326.88-420,964,797.12-117,155,057.44

Finding the Fourth Proportional to 280,795,326.88, 420,964,797.12 and 117,155,057.44

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Solution

The fourth proportional to 280,795,326.88, 420,964,797.12 and 117,155,057.44 is: 175,637,378.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,795,326.88 : 420,964,797.12 = 117,155,057.44 : x
  2. Step 2: Convert to fraction form
    280,795,326.88/420,964,797.12 = 117,155,057.44/x
  3. Step 3: Cross multiply
    280,795,326.88x = 420,964,797.12 × 117,155,057.44
  4. Step 4: Simplify right side
    280,795,326.88x = 49,318,154,986,811,544
  5. Step 5: Solve for x
    x = 49,318,154,986,811,544/280,795,326.88
  6. Step 6: Final answer
    x = 175,637,378.07

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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.