Home / 325,921,520.70-488,882,281.05-172,866,512.70

Finding the Fourth Proportional to 325,921,520.70, 488,882,281.05 and 172,866,512.70

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Solution

The fourth proportional to 325,921,520.70, 488,882,281.05 and 172,866,512.70 is: 259,299,769.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,921,520.70 : 488,882,281.05 = 172,866,512.70 : x
  2. Step 2: Convert to fraction form
    325,921,520.70/488,882,281.05 = 172,866,512.70/x
  3. Step 3: Cross multiply
    325,921,520.70x = 488,882,281.05 × 172,866,512.70
  4. Step 4: Simplify right side
    325,921,520.70x = 84,511,375,045,934,784
  5. Step 5: Solve for x
    x = 84,511,375,045,934,784/325,921,520.70
  6. Step 6: Final answer
    x = 259,299,769.05

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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.