Home / 12,197,471.55-18,290,321.65-7,081,189.40

Finding the Fourth Proportional to 12,197,471.55, 18,290,321.65 and 7,081,189.40

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Solution

The fourth proportional to 12,197,471.55, 18,290,321.65 and 7,081,189.40 is: 10,618,367.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,197,471.55 : 18,290,321.65 = 7,081,189.40 : x
  2. Step 2: Convert to fraction form
    12,197,471.55/18,290,321.65 = 7,081,189.40/x
  3. Step 3: Cross multiply
    12,197,471.55x = 18,290,321.65 × 7,081,189.40
  4. Step 4: Simplify right side
    12,197,471.55x = 129,517,231,720,269.22
  5. Step 5: Solve for x
    x = 129,517,231,720,269.22/12,197,471.55
  6. Step 6: Final answer
    x = 10,618,367.19

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.