Home / 641,654,031.60-962,481,047.40-156,979,839.60

Finding the Fourth Proportional to 641,654,031.60, 962,481,047.40 and 156,979,839.60

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Solution

The fourth proportional to 641,654,031.60, 962,481,047.40 and 156,979,839.60 is: 235,469,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,654,031.60 : 962,481,047.40 = 156,979,839.60 : x
  2. Step 2: Convert to fraction form
    641,654,031.60/962,481,047.40 = 156,979,839.60/x
  3. Step 3: Cross multiply
    641,654,031.60x = 962,481,047.40 × 156,979,839.60
  4. Step 4: Simplify right side
    641,654,031.60x = 151,090,120,438,892,000
  5. Step 5: Solve for x
    x = 151,090,120,438,892,000/641,654,031.60
  6. Step 6: Final answer
    x = 235,469,759.40

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Double scale
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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.