Home / 482,441,640.12-723,743,176.86-378,806,664.78

Finding the Fourth Proportional to 482,441,640.12, 723,743,176.86 and 378,806,664.78

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Solution

The fourth proportional to 482,441,640.12, 723,743,176.86 and 378,806,664.78 is: 568,273,374.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,441,640.12 : 723,743,176.86 = 378,806,664.78 : x
  2. Step 2: Convert to fraction form
    482,441,640.12/723,743,176.86 = 378,806,664.78/x
  3. Step 3: Cross multiply
    482,441,640.12x = 723,743,176.86 × 378,806,664.78
  4. Step 4: Simplify right side
    482,441,640.12x = 274,158,738,983,618,272
  5. Step 5: Solve for x
    x = 274,158,738,983,618,272/482,441,640.12
  6. Step 6: Final answer
    x = 568,273,374.82

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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.