Home / 353,986,687.88-488,499,884.34-205,337,872.52

Finding the Fourth Proportional to 353,986,687.88, 488,499,884.34 and 205,337,872.52

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Solution

The fourth proportional to 353,986,687.88, 488,499,884.34 and 205,337,872.52 is: 283,365,251.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,986,687.88 : 488,499,884.34 = 205,337,872.52 : x
  2. Step 2: Convert to fraction form
    353,986,687.88/488,499,884.34 = 205,337,872.52/x
  3. Step 3: Cross multiply
    353,986,687.88x = 488,499,884.34 × 205,337,872.52
  4. Step 4: Simplify right side
    353,986,687.88x = 100,307,526,976,641,664
  5. Step 5: Solve for x
    x = 100,307,526,976,641,664/353,986,687.88
  6. Step 6: Final answer
    x = 283,365,251.89

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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.