Home / 641,654,009.60-962,481,014.40-156,979,817.60

Finding the Fourth Proportional to 641,654,009.60, 962,481,014.40 and 156,979,817.60

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Solution

The fourth proportional to 641,654,009.60, 962,481,014.40 and 156,979,817.60 is: 235,469,726.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,654,009.60 : 962,481,014.40 = 156,979,817.60 : x
  2. Step 2: Convert to fraction form
    641,654,009.60/962,481,014.40 = 156,979,817.60/x
  3. Step 3: Cross multiply
    641,654,009.60x = 962,481,014.40 × 156,979,817.60
  4. Step 4: Simplify right side
    641,654,009.60x = 151,090,094,083,974,976
  5. Step 5: Solve for x
    x = 151,090,094,083,974,976/641,654,009.60
  6. Step 6: Final answer
    x = 235,469,726.40

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Double scale
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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.