Home / 193,965,576.30-290,948,364.45-172,920,512.70

Finding the Fourth Proportional to 193,965,576.30, 290,948,364.45 and 172,920,512.70

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Solution

The fourth proportional to 193,965,576.30, 290,948,364.45 and 172,920,512.70 is: 259,380,769.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,965,576.30 : 290,948,364.45 = 172,920,512.70 : x
  2. Step 2: Convert to fraction form
    193,965,576.30/290,948,364.45 = 172,920,512.70/x
  3. Step 3: Cross multiply
    193,965,576.30x = 290,948,364.45 × 172,920,512.70
  4. Step 4: Simplify right side
    193,965,576.30x = 50,310,940,349,920,448
  5. Step 5: Solve for x
    x = 50,310,940,349,920,448/193,965,576.30
  6. Step 6: Final answer
    x = 259,380,769.05

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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.