Home / 13,138,519.66-18,128,527.22-7,336,408.66

Finding the Fourth Proportional to 13,138,519.66, 18,128,527.22 and 7,336,408.66

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Solution

The fourth proportional to 13,138,519.66, 18,128,527.22 and 7,336,408.66 is: 10,122,775.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,138,519.66 : 18,128,527.22 = 7,336,408.66 : x
  2. Step 2: Convert to fraction form
    13,138,519.66/18,128,527.22 = 7,336,408.66/x
  3. Step 3: Cross multiply
    13,138,519.66x = 18,128,527.22 × 7,336,408.66
  4. Step 4: Simplify right side
    13,138,519.66x = 132,998,284,089,853.72
  5. Step 5: Solve for x
    x = 132,998,284,089,853.72/13,138,519.66
  6. Step 6: Final answer
    x = 10,122,775.44

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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.