Home / 667,340,199.70-1,001,010,299.55-380,685,735.70

Finding the Fourth Proportional to 667,340,199.70, 1,001,010,299.55 and 380,685,735.70

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Solution

The fourth proportional to 667,340,199.70, 1,001,010,299.55 and 380,685,735.70 is: 571,028,603.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,340,199.70 : 1,001,010,299.55 = 380,685,735.70 : x
  2. Step 2: Convert to fraction form
    667,340,199.70/1,001,010,299.55 = 380,685,735.70/x
  3. Step 3: Cross multiply
    667,340,199.70x = 1,001,010,299.55 × 380,685,735.70
  4. Step 4: Simplify right side
    667,340,199.70x = 381,070,342,327,469,120
  5. Step 5: Solve for x
    x = 381,070,342,327,469,120/667,340,199.70
  6. Step 6: Final answer
    x = 571,028,603.55

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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.