Home / 12,619,717.07-18,932,122.09-3,985,165.87

Finding the Fourth Proportional to 12,619,717.07, 18,932,122.09 and 3,985,165.87

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Solution

The fourth proportional to 12,619,717.07, 18,932,122.09 and 3,985,165.87 is: 5,978,552.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,619,717.07 : 18,932,122.09 = 3,985,165.87 : x
  2. Step 2: Convert to fraction form
    12,619,717.07/18,932,122.09 = 3,985,165.87/x
  3. Step 3: Cross multiply
    12,619,717.07x = 18,932,122.09 × 3,985,165.87
  4. Step 4: Simplify right side
    12,619,717.07x = 75,447,646,685,154.64
  5. Step 5: Solve for x
    x = 75,447,646,685,154.64/12,619,717.07
  6. Step 6: Final answer
    x = 5,978,552.95

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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.