Home / 1,198,969,121.74-1,654,138,272.54-722,764,768.72

Finding the Fourth Proportional to 1,198,969,121.74, 1,654,138,272.54 and 722,764,768.72

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Solution

The fourth proportional to 1,198,969,121.74, 1,654,138,272.54 and 722,764,768.72 is: 997,150,672.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,969,121.74 : 1,654,138,272.54 = 722,764,768.72 : x
  2. Step 2: Convert to fraction form
    1,198,969,121.74/1,654,138,272.54 = 722,764,768.72/x
  3. Step 3: Cross multiply
    1,198,969,121.74x = 1,654,138,272.54 × 722,764,768.72
  4. Step 4: Simplify right side
    1,198,969,121.74x = 1,195,552,865,983,273,472
  5. Step 5: Solve for x
    x = 1,195,552,865,983,273,472/1,198,969,121.74
  6. Step 6: Final answer
    x = 997,150,672.44

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.