Home / 12,405,176.26-18,595,616.28-6,942,938.72

Finding the Fourth Proportional to 12,405,176.26, 18,595,616.28 and 6,942,938.72

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Solution

The fourth proportional to 12,405,176.26, 18,595,616.28 and 6,942,938.72 is: 10,407,609.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,405,176.26 : 18,595,616.28 = 6,942,938.72 : x
  2. Step 2: Convert to fraction form
    12,405,176.26/18,595,616.28 = 6,942,938.72/x
  3. Step 3: Cross multiply
    12,405,176.26x = 18,595,616.28 × 6,942,938.72
  4. Step 4: Simplify right side
    12,405,176.26x = 129,108,224,339,163.41
  5. Step 5: Solve for x
    x = 129,108,224,339,163.41/12,405,176.26
  6. Step 6: Final answer
    x = 10,407,609.02

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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.