Home / 208,093,282.10-311,803,999.95-131,278,843.70

Finding the Fourth Proportional to 208,093,282.10, 311,803,999.95 and 131,278,843.70

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Solution

The fourth proportional to 208,093,282.10, 311,803,999.95 and 131,278,843.70 is: 196,706,343.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,093,282.10 : 311,803,999.95 = 131,278,843.70 : x
  2. Step 2: Convert to fraction form
    208,093,282.10/311,803,999.95 = 131,278,843.70/x
  3. Step 3: Cross multiply
    208,093,282.10x = 311,803,999.95 × 131,278,843.70
  4. Step 4: Simplify right side
    208,093,282.10x = 40,933,268,574,470,856
  5. Step 5: Solve for x
    x = 40,933,268,574,470,856/208,093,282.10
  6. Step 6: Final answer
    x = 196,706,343.24

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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.