Home / 918,961,086.56-1,268,174,392.92-501,275,229.44

Finding the Fourth Proportional to 918,961,086.56, 1,268,174,392.92 and 501,275,229.44

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Solution

The fourth proportional to 918,961,086.56, 1,268,174,392.92 and 501,275,229.44 is: 691,764,231.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,961,086.56 : 1,268,174,392.92 = 501,275,229.44 : x
  2. Step 2: Convert to fraction form
    918,961,086.56/1,268,174,392.92 = 501,275,229.44/x
  3. Step 3: Cross multiply
    918,961,086.56x = 1,268,174,392.92 × 501,275,229.44
  4. Step 4: Simplify right side
    918,961,086.56x = 635,704,409,780,905,728
  5. Step 5: Solve for x
    x = 635,704,409,780,905,728/918,961,086.56
  6. Step 6: Final answer
    x = 691,764,231.45

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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.