Home / 667,096,772.20-1,000,640,119.99-200,756,188.44

Finding the Fourth Proportional to 667,096,772.20, 1,000,640,119.99 and 200,756,188.44

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Solution

The fourth proportional to 667,096,772.20, 1,000,640,119.99 and 200,756,188.44 is: 301,132,766.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,096,772.20 : 1,000,640,119.99 = 200,756,188.44 : x
  2. Step 2: Convert to fraction form
    667,096,772.20/1,000,640,119.99 = 200,756,188.44/x
  3. Step 3: Cross multiply
    667,096,772.20x = 1,000,640,119.99 × 200,756,188.44
  4. Step 4: Simplify right side
    667,096,772.20x = 200,884,696,489,336,640
  5. Step 5: Solve for x
    x = 200,884,696,489,336,640/667,096,772.20
  6. Step 6: Final answer
    x = 301,132,766.43

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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.