Home / 1,780,488,608.96-2,667,361,854.48-1,188,493,809.78

Finding the Fourth Proportional to 1,780,488,608.96, 2,667,361,854.48 and 1,188,493,809.78

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Solution

The fourth proportional to 1,780,488,608.96, 2,667,361,854.48 and 1,188,493,809.78 is: 1,780,490,499.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780,488,608.96 : 2,667,361,854.48 = 1,188,493,809.78 : x
  2. Step 2: Convert to fraction form
    1,780,488,608.96/2,667,361,854.48 = 1,188,493,809.78/x
  3. Step 3: Cross multiply
    1,780,488,608.96x = 2,667,361,854.48 × 1,188,493,809.78
  4. Step 4: Simplify right side
    1,780,488,608.96x = 3,170,143,052,492,781,056
  5. Step 5: Solve for x
    x = 3,170,143,052,492,781,056/1,780,488,608.96
  6. Step 6: Final answer
    x = 1,780,490,499.37

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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.