Home / 641,654,003.10-962,481,004.65-156,979,811.10

Finding the Fourth Proportional to 641,654,003.10, 962,481,004.65 and 156,979,811.10

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Solution

The fourth proportional to 641,654,003.10, 962,481,004.65 and 156,979,811.10 is: 235,469,716.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,654,003.10 : 962,481,004.65 = 156,979,811.10 : x
  2. Step 2: Convert to fraction form
    641,654,003.10/962,481,004.65 = 156,979,811.10/x
  3. Step 3: Cross multiply
    641,654,003.10x = 962,481,004.65 × 156,979,811.10
  4. Step 4: Simplify right side
    641,654,003.10x = 151,090,086,297,295,200
  5. Step 5: Solve for x
    x = 151,090,086,297,295,200/641,654,003.10
  6. Step 6: Final answer
    x = 235,469,716.65

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Double scale
Find fourth proportional to 641,654,004.10, 962,481,006.15 and 156,979,812.10
Similar ratio
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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.