Home / 206,172,823.80-309,259,235.70-91,098,132.60

Finding the Fourth Proportional to 206,172,823.80, 309,259,235.70 and 91,098,132.60

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Solution

The fourth proportional to 206,172,823.80, 309,259,235.70 and 91,098,132.60 is: 136,647,198.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,172,823.80 : 309,259,235.70 = 91,098,132.60 : x
  2. Step 2: Convert to fraction form
    206,172,823.80/309,259,235.70 = 91,098,132.60/x
  3. Step 3: Cross multiply
    206,172,823.80x = 309,259,235.70 × 91,098,132.60
  4. Step 4: Simplify right side
    206,172,823.80x = 28,172,938,861,573,252
  5. Step 5: Solve for x
    x = 28,172,938,861,573,252/206,172,823.80
  6. Step 6: Final answer
    x = 136,647,198.90

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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.