Home / 493,155,185.57-680,296,139.20-304,923,308.92

Finding the Fourth Proportional to 493,155,185.57, 680,296,139.20 and 304,923,308.92

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Solution

The fourth proportional to 493,155,185.57, 680,296,139.20 and 304,923,308.92 is: 420,634,631.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,155,185.57 : 680,296,139.20 = 304,923,308.92 : x
  2. Step 2: Convert to fraction form
    493,155,185.57/680,296,139.20 = 304,923,308.92/x
  3. Step 3: Cross multiply
    493,155,185.57x = 680,296,139.20 × 304,923,308.92
  4. Step 4: Simplify right side
    493,155,185.57x = 207,438,149,808,840,320
  5. Step 5: Solve for x
    x = 207,438,149,808,840,320/493,155,185.57
  6. Step 6: Final answer
    x = 420,634,631.61

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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.