Home / 12,231,084.85-18,306,705.21-8,991,764.71

Finding the Fourth Proportional to 12,231,084.85, 18,306,705.21 and 8,991,764.71

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Solution

The fourth proportional to 12,231,084.85, 18,306,705.21 and 8,991,764.71 is: 13,458,298.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231,084.85 : 18,306,705.21 = 8,991,764.71 : x
  2. Step 2: Convert to fraction form
    12,231,084.85/18,306,705.21 = 8,991,764.71/x
  3. Step 3: Cross multiply
    12,231,084.85x = 18,306,705.21 × 8,991,764.71
  4. Step 4: Simplify right side
    12,231,084.85x = 164,609,585,863,651.16
  5. Step 5: Solve for x
    x = 164,609,585,863,651.16/12,231,084.85
  6. Step 6: Final answer
    x = 13,458,298.09

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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.