Home / 503,262,940.56-694,480,519.08-280,256,125.20

Finding the Fourth Proportional to 503,262,940.56, 694,480,519.08 and 280,256,125.20

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Solution

The fourth proportional to 503,262,940.56, 694,480,519.08 and 280,256,125.20 is: 386,741,012.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,262,940.56 : 694,480,519.08 = 280,256,125.20 : x
  2. Step 2: Convert to fraction form
    503,262,940.56/694,480,519.08 = 280,256,125.20/x
  3. Step 3: Cross multiply
    503,262,940.56x = 694,480,519.08 × 280,256,125.20
  4. Step 4: Simplify right side
    503,262,940.56x = 194,632,419,304,245,472
  5. Step 5: Solve for x
    x = 194,632,419,304,245,472/503,262,940.56
  6. Step 6: Final answer
    x = 386,741,012.74

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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.