Home / 198,004,784.20-296,889,078.30-121,382,801.80

Finding the Fourth Proportional to 198,004,784.20, 296,889,078.30 and 121,382,801.80

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Solution

The fourth proportional to 198,004,784.20, 296,889,078.30 and 121,382,801.80 is: 182,001,805.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,004,784.20 : 296,889,078.30 = 121,382,801.80 : x
  2. Step 2: Convert to fraction form
    198,004,784.20/296,889,078.30 = 121,382,801.80/x
  3. Step 3: Cross multiply
    198,004,784.20x = 296,889,078.30 × 121,382,801.80
  4. Step 4: Simplify right side
    198,004,784.20x = 36,037,228,147,873,584
  5. Step 5: Solve for x
    x = 36,037,228,147,873,584/198,004,784.20
  6. Step 6: Final answer
    x = 182,001,805.13

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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.