Home / 13,139,176.56-18,000,370.62-12,647,939.04

Finding the Fourth Proportional to 13,139,176.56, 18,000,370.62 and 12,647,939.04

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Solution

The fourth proportional to 13,139,176.56, 18,000,370.62 and 12,647,939.04 is: 17,327,386.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,139,176.56 : 18,000,370.62 = 12,647,939.04 : x
  2. Step 2: Convert to fraction form
    13,139,176.56/18,000,370.62 = 12,647,939.04/x
  3. Step 3: Cross multiply
    13,139,176.56x = 18,000,370.62 × 12,647,939.04
  4. Step 4: Simplify right side
    13,139,176.56x = 227,667,590,299,167
  5. Step 5: Solve for x
    x = 227,667,590,299,167/13,139,176.56
  6. Step 6: Final answer
    x = 17,327,386.48

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.