Home / 694,639,478.64-958,629,438.40-381,386,895.60

Finding the Fourth Proportional to 694,639,478.64, 958,629,438.40 and 381,386,895.60

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Solution

The fourth proportional to 694,639,478.64, 958,629,438.40 and 381,386,895.60 is: 526,328,716.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,639,478.64 : 958,629,438.40 = 381,386,895.60 : x
  2. Step 2: Convert to fraction form
    694,639,478.64/958,629,438.40 = 381,386,895.60/x
  3. Step 3: Cross multiply
    694,639,478.64x = 958,629,438.40 × 381,386,895.60
  4. Step 4: Simplify right side
    694,639,478.64x = 365,608,705,542,147,456
  5. Step 5: Solve for x
    x = 365,608,705,542,147,456/694,639,478.64
  6. Step 6: Final answer
    x = 526,328,716.96

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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.