Home / 667,096,771.70-1,000,640,119.25-200,756,187.95

Finding the Fourth Proportional to 667,096,771.70, 1,000,640,119.25 and 200,756,187.95

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Solution

The fourth proportional to 667,096,771.70, 1,000,640,119.25 and 200,756,187.95 is: 301,132,765.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,096,771.70 : 1,000,640,119.25 = 200,756,187.95 : x
  2. Step 2: Convert to fraction form
    667,096,771.70/1,000,640,119.25 = 200,756,187.95/x
  3. Step 3: Cross multiply
    667,096,771.70x = 1,000,640,119.25 × 200,756,187.95
  4. Step 4: Simplify right side
    667,096,771.70x = 200,884,695,844,456,416
  5. Step 5: Solve for x
    x = 200,884,695,844,456,416/667,096,771.70
  6. Step 6: Final answer
    x = 301,132,765.69

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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.