Home / 426,568,084.54-639,876,041.52-119,836,282.84

Finding the Fourth Proportional to 426,568,084.54, 639,876,041.52 and 119,836,282.84

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Solution

The fourth proportional to 426,568,084.54, 639,876,041.52 and 119,836,282.84 is: 179,761,142.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,568,084.54 : 639,876,041.52 = 119,836,282.84 : x
  2. Step 2: Convert to fraction form
    426,568,084.54/639,876,041.52 = 119,836,282.84/x
  3. Step 3: Cross multiply
    426,568,084.54x = 639,876,041.52 × 119,836,282.84
  4. Step 4: Simplify right side
    426,568,084.54x = 76,680,366,290,930,912
  5. Step 5: Solve for x
    x = 76,680,366,290,930,912/426,568,084.54
  6. Step 6: Final answer
    x = 179,761,142.64

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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.