Home / 354,321,190.40-531,481,785.60-198,715,265.60

Finding the Fourth Proportional to 354,321,190.40, 531,481,785.60 and 198,715,265.60

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Solution

The fourth proportional to 354,321,190.40, 531,481,785.60 and 198,715,265.60 is: 298,072,898.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,321,190.40 : 531,481,785.60 = 198,715,265.60 : x
  2. Step 2: Convert to fraction form
    354,321,190.40/531,481,785.60 = 198,715,265.60/x
  3. Step 3: Cross multiply
    354,321,190.40x = 531,481,785.60 × 198,715,265.60
  4. Step 4: Simplify right side
    354,321,190.40x = 105,613,544,187,066,256
  5. Step 5: Solve for x
    x = 105,613,544,187,066,256/354,321,190.40
  6. Step 6: Final answer
    x = 298,072,898.40

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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.