Home / 280,033,418.20-419,042,357.70-189,334,154.20

Finding the Fourth Proportional to 280,033,418.20, 419,042,357.70 and 189,334,154.20

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Solution

The fourth proportional to 280,033,418.20, 419,042,357.70 and 189,334,154.20 is: 283,319,865.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,033,418.20 : 419,042,357.70 = 189,334,154.20 : x
  2. Step 2: Convert to fraction form
    280,033,418.20/419,042,357.70 = 189,334,154.20/x
  3. Step 3: Cross multiply
    280,033,418.20x = 419,042,357.70 × 189,334,154.20
  4. Step 4: Simplify right side
    280,033,418.20x = 79,339,030,369,103,344
  5. Step 5: Solve for x
    x = 79,339,030,369,103,344/280,033,418.20
  6. Step 6: Final answer
    x = 283,319,865.46

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1.5x scale

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.