Home / 12,627,328.13-18,941,668.35-3,990,771.58

Finding the Fourth Proportional to 12,627,328.13, 18,941,668.35 and 3,990,771.58

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Solution

The fourth proportional to 12,627,328.13, 18,941,668.35 and 3,990,771.58 is: 5,986,371.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,627,328.13 : 18,941,668.35 = 3,990,771.58 : x
  2. Step 2: Convert to fraction form
    12,627,328.13/18,941,668.35 = 3,990,771.58/x
  3. Step 3: Cross multiply
    12,627,328.13x = 18,941,668.35 × 3,990,771.58
  4. Step 4: Simplify right side
    12,627,328.13x = 75,591,871,728,965.50
  5. Step 5: Solve for x
    x = 75,591,871,728,965.50/12,627,328.13
  6. Step 6: Final answer
    x = 5,986,371.06

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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.