Home / 355,727,336.52-490,919,066.60-196,957,458.12

Finding the Fourth Proportional to 355,727,336.52, 490,919,066.60 and 196,957,458.12

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Solution

The fourth proportional to 355,727,336.52, 490,919,066.60 and 196,957,458.12 is: 271,809,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,727,336.52 : 490,919,066.60 = 196,957,458.12 : x
  2. Step 2: Convert to fraction form
    355,727,336.52/490,919,066.60 = 196,957,458.12/x
  3. Step 3: Cross multiply
    355,727,336.52x = 490,919,066.60 × 196,957,458.12
  4. Step 4: Simplify right side
    355,727,336.52x = 96,690,171,500,178,992
  5. Step 5: Solve for x
    x = 96,690,171,500,178,992/355,727,336.52
  6. Step 6: Final answer
    x = 271,809,786.80

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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.