Home / 66,979,080.56-100,322,142.44-47,489,229.04

Finding the Fourth Proportional to 66,979,080.56, 100,322,142.44 and 47,489,229.04

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Solution

The fourth proportional to 66,979,080.56, 100,322,142.44 and 47,489,229.04 is: 71,129,988.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,979,080.56 : 100,322,142.44 = 47,489,229.04 : x
  2. Step 2: Convert to fraction form
    66,979,080.56/100,322,142.44 = 47,489,229.04/x
  3. Step 3: Cross multiply
    66,979,080.56x = 100,322,142.44 × 47,489,229.04
  4. Step 4: Simplify right side
    66,979,080.56x = 4,764,221,200,116,664
  5. Step 5: Solve for x
    x = 4,764,221,200,116,664/66,979,080.56
  6. Step 6: Final answer
    x = 71,129,988.05

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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.