Home / 131,680,198.67-181,718,610.44-78,756,905.07

Finding the Fourth Proportional to 131,680,198.67, 181,718,610.44 and 78,756,905.07

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Solution

The fourth proportional to 131,680,198.67, 181,718,610.44 and 78,756,905.07 is: 108,684,490.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,680,198.67 : 181,718,610.44 = 78,756,905.07 : x
  2. Step 2: Convert to fraction form
    131,680,198.67/181,718,610.44 = 78,756,905.07/x
  3. Step 3: Cross multiply
    131,680,198.67x = 181,718,610.44 × 78,756,905.07
  4. Step 4: Simplify right side
    131,680,198.67x = 14,311,595,351,481,606
  5. Step 5: Solve for x
    x = 14,311,595,351,481,606/131,680,198.67
  6. Step 6: Final answer
    x = 108,684,490.88

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.