Home / 12,246,990.81-18,374,619.03-5,422,632.27

Finding the Fourth Proportional to 12,246,990.81, 18,374,619.03 and 5,422,632.27

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Solution

The fourth proportional to 12,246,990.81, 18,374,619.03 and 5,422,632.27 is: 8,135,778.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,246,990.81 : 18,374,619.03 = 5,422,632.27 : x
  2. Step 2: Convert to fraction form
    12,246,990.81/18,374,619.03 = 5,422,632.27/x
  3. Step 3: Cross multiply
    12,246,990.81x = 18,374,619.03 × 5,422,632.27
  4. Step 4: Simplify right side
    12,246,990.81x = 99,638,802,101,034.09
  5. Step 5: Solve for x
    x = 99,638,802,101,034.09/12,246,990.81
  6. Step 6: Final answer
    x = 8,135,778.30

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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.