Home / 7,910,640-11,858,922.72-2,860,827.84

Finding the Fourth Proportional to 7,910,640, 11,858,922.72 and 2,860,827.84

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Solution

The fourth proportional to 7,910,640, 11,858,922.72 and 2,860,827.84 is: 4,288,696.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,910,640 : 11,858,922.72 = 2,860,827.84 : x
  2. Step 2: Convert to fraction form
    7,910,640/11,858,922.72 = 2,860,827.84/x
  3. Step 3: Cross multiply
    7,910,640x = 11,858,922.72 × 2,860,827.84
  4. Step 4: Simplify right side
    7,910,640x = 33,926,336,269,784.52
  5. Step 5: Solve for x
    x = 33,926,336,269,784.52/7,910,640
  6. Step 6: Final answer
    x = 4,288,696.78

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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.