Home / 12,290,680.15-18,436,020.23-11,072,958.55

Finding the Fourth Proportional to 12,290,680.15, 18,436,020.23 and 11,072,958.55

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Solution

The fourth proportional to 12,290,680.15, 18,436,020.23 and 11,072,958.55 is: 16,609,437.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290,680.15 : 18,436,020.23 = 11,072,958.55 : x
  2. Step 2: Convert to fraction form
    12,290,680.15/18,436,020.23 = 11,072,958.55/x
  3. Step 3: Cross multiply
    12,290,680.15x = 18,436,020.23 × 11,072,958.55
  4. Step 4: Simplify right side
    12,290,680.15x = 204,141,287,778,386.72
  5. Step 5: Solve for x
    x = 204,141,287,778,386.72/12,290,680.15
  6. Step 6: Final answer
    x = 16,609,437.83

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Similar ratio
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1.5x scale

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.