Home / 426,568,084.86-639,876,042-119,836,283.16

Finding the Fourth Proportional to 426,568,084.86, 639,876,042 and 119,836,283.16

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Solution

The fourth proportional to 426,568,084.86, 639,876,042 and 119,836,283.16 is: 179,761,143.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,568,084.86 : 639,876,042 = 119,836,283.16 : x
  2. Step 2: Convert to fraction form
    426,568,084.86/639,876,042 = 119,836,283.16/x
  3. Step 3: Cross multiply
    426,568,084.86x = 639,876,042 × 119,836,283.16
  4. Step 4: Simplify right side
    426,568,084.86x = 76,680,366,556,412,048
  5. Step 5: Solve for x
    x = 76,680,366,556,412,048/426,568,084.86
  6. Step 6: Final answer
    x = 179,761,143.13

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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.