Home / 491,664,878.42-738,022,323.23-211,684,446.27

Finding the Fourth Proportional to 491,664,878.42, 738,022,323.23 and 211,684,446.27

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Solution

The fourth proportional to 491,664,878.42, 738,022,323.23 and 211,684,446.27 is: 317,752,708.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,664,878.42 : 738,022,323.23 = 211,684,446.27 : x
  2. Step 2: Convert to fraction form
    491,664,878.42/738,022,323.23 = 211,684,446.27/x
  3. Step 3: Cross multiply
    491,664,878.42x = 738,022,323.23 × 211,684,446.27
  4. Step 4: Simplify right side
    491,664,878.42x = 156,227,846,826,783,104
  5. Step 5: Solve for x
    x = 156,227,846,826,783,104/491,664,878.42
  6. Step 6: Final answer
    x = 317,752,708.57

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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.