Home / 312,670,723.26-469,006,099.50-214,205,334.78

Finding the Fourth Proportional to 312,670,723.26, 469,006,099.50 and 214,205,334.78

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Solution

The fourth proportional to 312,670,723.26, 469,006,099.50 and 214,205,334.78 is: 321,308,012.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,670,723.26 : 469,006,099.50 = 214,205,334.78 : x
  2. Step 2: Convert to fraction form
    312,670,723.26/469,006,099.50 = 214,205,334.78/x
  3. Step 3: Cross multiply
    312,670,723.26x = 469,006,099.50 × 214,205,334.78
  4. Step 4: Simplify right side
    312,670,723.26x = 100,463,608,557,259,488
  5. Step 5: Solve for x
    x = 100,463,608,557,259,488/312,670,723.26
  6. Step 6: Final answer
    x = 321,308,012.18

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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.