Home / 667,340,171.70-1,001,010,257.55-380,685,707.70

Finding the Fourth Proportional to 667,340,171.70, 1,001,010,257.55 and 380,685,707.70

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Solution

The fourth proportional to 667,340,171.70, 1,001,010,257.55 and 380,685,707.70 is: 571,028,561.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,340,171.70 : 1,001,010,257.55 = 380,685,707.70 : x
  2. Step 2: Convert to fraction form
    667,340,171.70/1,001,010,257.55 = 380,685,707.70/x
  3. Step 3: Cross multiply
    667,340,171.70x = 1,001,010,257.55 × 380,685,707.70
  4. Step 4: Simplify right side
    667,340,171.70x = 381,070,298,310,380,992
  5. Step 5: Solve for x
    x = 381,070,298,310,380,992/667,340,171.70
  6. Step 6: Final answer
    x = 571,028,561.55

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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.