Home / 198,004,799.70-296,889,101.55-121,382,817.30

Finding the Fourth Proportional to 198,004,799.70, 296,889,101.55 and 121,382,817.30

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Solution

The fourth proportional to 198,004,799.70, 296,889,101.55 and 121,382,817.30 is: 182,001,828.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,004,799.70 : 296,889,101.55 = 121,382,817.30 : x
  2. Step 2: Convert to fraction form
    198,004,799.70/296,889,101.55 = 121,382,817.30/x
  3. Step 3: Cross multiply
    198,004,799.70x = 296,889,101.55 × 121,382,817.30
  4. Step 4: Simplify right side
    198,004,799.70x = 36,037,235,571,804,800
  5. Step 5: Solve for x
    x = 36,037,235,571,804,800/198,004,799.70
  6. Step 6: Final answer
    x = 182,001,828.37

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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.