Home / 72,548,559.36-108,837,187.20-20,733,626.88

Finding the Fourth Proportional to 72,548,559.36, 108,837,187.20 and 20,733,626.88

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Solution

The fourth proportional to 72,548,559.36, 108,837,187.20 and 20,733,626.88 is: 31,104,540.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,548,559.36 : 108,837,187.20 = 20,733,626.88 : x
  2. Step 2: Convert to fraction form
    72,548,559.36/108,837,187.20 = 20,733,626.88/x
  3. Step 3: Cross multiply
    72,548,559.36x = 108,837,187.20 × 20,733,626.88
  4. Step 4: Simplify right side
    72,548,559.36x = 2,256,589,630,073,512
  5. Step 5: Solve for x
    x = 2,256,589,630,073,512/72,548,559.36
  6. Step 6: Final answer
    x = 31,104,540.88

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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.