Home / 437,469,691.40-656,120,556.30-130,771,809.80

Finding the Fourth Proportional to 437,469,691.40, 656,120,556.30 and 130,771,809.80

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Solution

The fourth proportional to 437,469,691.40, 656,120,556.30 and 130,771,809.80 is: 196,132,610.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,469,691.40 : 656,120,556.30 = 130,771,809.80 : x
  2. Step 2: Convert to fraction form
    437,469,691.40/656,120,556.30 = 130,771,809.80/x
  3. Step 3: Cross multiply
    437,469,691.40x = 656,120,556.30 × 130,771,809.80
  4. Step 4: Simplify right side
    437,469,691.40x = 85,802,072,594,333,776
  5. Step 5: Solve for x
    x = 85,802,072,594,333,776/437,469,691.40
  6. Step 6: Final answer
    x = 196,132,610.51

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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.