Home / 743,740,540.46-1,116,309,769.65-389,469,105.44

Finding the Fourth Proportional to 743,740,540.46, 1,116,309,769.65 and 389,469,105.44

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Solution

The fourth proportional to 743,740,540.46, 1,116,309,769.65 and 389,469,105.44 is: 584,569,676.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,740,540.46 : 1,116,309,769.65 = 389,469,105.44 : x
  2. Step 2: Convert to fraction form
    743,740,540.46/1,116,309,769.65 = 389,469,105.44/x
  3. Step 3: Cross multiply
    743,740,540.46x = 1,116,309,769.65 × 389,469,105.44
  4. Step 4: Simplify right side
    743,740,540.46x = 434,768,167,379,518,016
  5. Step 5: Solve for x
    x = 434,768,167,379,518,016/743,740,540.46
  6. Step 6: Final answer
    x = 584,569,676.83

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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.