Home / 28,476,840.60-42,711,113.70-8,279,976.60

Finding the Fourth Proportional to 28,476,840.60, 42,711,113.70 and 8,279,976.60

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Solution

The fourth proportional to 28,476,840.60, 42,711,113.70 and 8,279,976.60 is: 12,418,759.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,476,840.60 : 42,711,113.70 = 8,279,976.60 : x
  2. Step 2: Convert to fraction form
    28,476,840.60/42,711,113.70 = 8,279,976.60/x
  3. Step 3: Cross multiply
    28,476,840.60x = 42,711,113.70 × 8,279,976.60
  4. Step 4: Simplify right side
    28,476,840.60x = 353,647,021,995,939.44
  5. Step 5: Solve for x
    x = 353,647,021,995,939.44/28,476,840.60
  6. Step 6: Final answer
    x = 12,418,759.05

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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.