Home / 1,319,715,432.60-1,821,004,844.94-762,690,906.60

Finding the Fourth Proportional to 1,319,715,432.60, 1,821,004,844.94 and 762,690,906.60

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Solution

The fourth proportional to 1,319,715,432.60, 1,821,004,844.94 and 762,690,906.60 is: 1,052,396,449.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,715,432.60 : 1,821,004,844.94 = 762,690,906.60 : x
  2. Step 2: Convert to fraction form
    1,319,715,432.60/1,821,004,844.94 = 762,690,906.60/x
  3. Step 3: Cross multiply
    1,319,715,432.60x = 1,821,004,844.94 × 762,690,906.60
  4. Step 4: Simplify right side
    1,319,715,432.60x = 1,388,863,836,110,281,216
  5. Step 5: Solve for x
    x = 1,388,863,836,110,281,216/1,319,715,432.60
  6. Step 6: Final answer
    x = 1,052,396,449.87

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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.