Home / 930,978,442.56-1,396,611,152.92-317,419,179.24

Finding the Fourth Proportional to 930,978,442.56, 1,396,611,152.92 and 317,419,179.24

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Solution

The fourth proportional to 930,978,442.56, 1,396,611,152.92 and 317,419,179.24 is: 476,177,691.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,978,442.56 : 1,396,611,152.92 = 317,419,179.24 : x
  2. Step 2: Convert to fraction form
    930,978,442.56/1,396,611,152.92 = 317,419,179.24/x
  3. Step 3: Cross multiply
    930,978,442.56x = 1,396,611,152.92 × 317,419,179.24
  4. Step 4: Simplify right side
    930,978,442.56x = 443,311,165,877,296,576
  5. Step 5: Solve for x
    x = 443,311,165,877,296,576/930,978,442.56
  6. Step 6: Final answer
    x = 476,177,691.78

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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.