Home / 12,238,261.20-18,360,016.20-3,719,458.80

Finding the Fourth Proportional to 12,238,261.20, 18,360,016.20 and 3,719,458.80

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Solution

The fourth proportional to 12,238,261.20, 18,360,016.20 and 3,719,458.80 is: 5,579,985.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,238,261.20 : 18,360,016.20 = 3,719,458.80 : x
  2. Step 2: Convert to fraction form
    12,238,261.20/18,360,016.20 = 3,719,458.80/x
  3. Step 3: Cross multiply
    12,238,261.20x = 18,360,016.20 × 3,719,458.80
  4. Step 4: Simplify right side
    12,238,261.20x = 68,289,323,823,232.55
  5. Step 5: Solve for x
    x = 68,289,323,823,232.55/12,238,261.20
  6. Step 6: Final answer
    x = 5,579,985.81

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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.