Home / 208,093,281.60-311,803,999.20-131,278,843.20

Finding the Fourth Proportional to 208,093,281.60, 311,803,999.20 and 131,278,843.20

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Solution

The fourth proportional to 208,093,281.60, 311,803,999.20 and 131,278,843.20 is: 196,706,342.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,093,281.60 : 311,803,999.20 = 131,278,843.20 : x
  2. Step 2: Convert to fraction form
    208,093,281.60/311,803,999.20 = 131,278,843.20/x
  3. Step 3: Cross multiply
    208,093,281.60x = 311,803,999.20 × 131,278,843.20
  4. Step 4: Simplify right side
    208,093,281.60x = 40,933,268,320,109,728
  5. Step 5: Solve for x
    x = 40,933,268,320,109,728/208,093,281.60
  6. Step 6: Final answer
    x = 196,706,342.49

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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.