Home / 288,458,556.30-432,687,834.45-259,737,122.70

Finding the Fourth Proportional to 288,458,556.30, 432,687,834.45 and 259,737,122.70

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Solution

The fourth proportional to 288,458,556.30, 432,687,834.45 and 259,737,122.70 is: 389,605,684.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,458,556.30 : 432,687,834.45 = 259,737,122.70 : x
  2. Step 2: Convert to fraction form
    288,458,556.30/432,687,834.45 = 259,737,122.70/x
  3. Step 3: Cross multiply
    288,458,556.30x = 432,687,834.45 × 259,737,122.70
  4. Step 4: Simplify right side
    288,458,556.30x = 112,385,093,147,336,928
  5. Step 5: Solve for x
    x = 112,385,093,147,336,928/288,458,556.30
  6. Step 6: Final answer
    x = 389,605,684.05

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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.