Home / 354,321,191.40-531,481,787.10-198,715,266.60

Finding the Fourth Proportional to 354,321,191.40, 531,481,787.10 and 198,715,266.60

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Solution

The fourth proportional to 354,321,191.40, 531,481,787.10 and 198,715,266.60 is: 298,072,899.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,321,191.40 : 531,481,787.10 = 198,715,266.60 : x
  2. Step 2: Convert to fraction form
    354,321,191.40/531,481,787.10 = 198,715,266.60/x
  3. Step 3: Cross multiply
    354,321,191.40x = 531,481,787.10 × 198,715,266.60
  4. Step 4: Simplify right side
    354,321,191.40x = 105,613,545,016,620,944
  5. Step 5: Solve for x
    x = 105,613,545,016,620,944/354,321,191.40
  6. Step 6: Final answer
    x = 298,072,899.90

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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.