Home / 787,321,674.87-1,086,536,919.56-452,794,458.53

Finding the Fourth Proportional to 787,321,674.87, 1,086,536,919.56 and 452,794,458.53

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Solution

The fourth proportional to 787,321,674.87, 1,086,536,919.56 and 452,794,458.53 is: 624,875,336.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,321,674.87 : 1,086,536,919.56 = 452,794,458.53 : x
  2. Step 2: Convert to fraction form
    787,321,674.87/1,086,536,919.56 = 452,794,458.53/x
  3. Step 3: Cross multiply
    787,321,674.87x = 1,086,536,919.56 × 452,794,458.53
  4. Step 4: Simplify right side
    787,321,674.87x = 491,977,896,165,024,320
  5. Step 5: Solve for x
    x = 491,977,896,165,024,320/787,321,674.87
  6. Step 6: Final answer
    x = 624,875,336.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.