Home / 8,579,187.29-12,868,770.06-2,189,439.78

Finding the Fourth Proportional to 8,579,187.29, 12,868,770.06 and 2,189,439.78

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Solution

The fourth proportional to 8,579,187.29, 12,868,770.06 and 2,189,439.78 is: 3,284,156.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579,187.29 : 12,868,770.06 = 2,189,439.78 : x
  2. Step 2: Convert to fraction form
    8,579,187.29/12,868,770.06 = 2,189,439.78/x
  3. Step 3: Cross multiply
    8,579,187.29x = 12,868,770.06 × 2,189,439.78
  4. Step 4: Simplify right side
    8,579,187.29x = 28,175,397,089,036.98
  5. Step 5: Solve for x
    x = 28,175,397,089,036.98/8,579,187.29
  6. Step 6: Final answer
    x = 3,284,156.89

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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.