Home / 12,408,921.22-18,613,615.09-3,889,069.06

Finding the Fourth Proportional to 12,408,921.22, 18,613,615.09 and 3,889,069.06

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Solution

The fourth proportional to 12,408,921.22, 18,613,615.09 and 3,889,069.06 is: 5,833,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408,921.22 : 18,613,615.09 = 3,889,069.06 : x
  2. Step 2: Convert to fraction form
    12,408,921.22/18,613,615.09 = 3,889,069.06/x
  3. Step 3: Cross multiply
    12,408,921.22x = 18,613,615.09 × 3,889,069.06
  4. Step 4: Simplify right side
    12,408,921.22x = 72,389,634,541,268.11
  5. Step 5: Solve for x
    x = 72,389,634,541,268.11/12,408,921.22
  6. Step 6: Final answer
    x = 5,833,676.70

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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.