Home / 210,510,583.43-290,489,857.61-122,398,329.96

Finding the Fourth Proportional to 210,510,583.43, 290,489,857.61 and 122,398,329.96

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Solution

The fourth proportional to 210,510,583.43, 290,489,857.61 and 122,398,329.96 is: 168,901,120.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,510,583.43 : 290,489,857.61 = 122,398,329.96 : x
  2. Step 2: Convert to fraction form
    210,510,583.43/290,489,857.61 = 122,398,329.96/x
  3. Step 3: Cross multiply
    210,510,583.43x = 290,489,857.61 × 122,398,329.96
  4. Step 4: Simplify right side
    210,510,583.43x = 35,555,473,441,170,204
  5. Step 5: Solve for x
    x = 35,555,473,441,170,204/210,510,583.43
  6. Step 6: Final answer
    x = 168,901,120.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.