Finding the Fourth Proportional to 280,410,082.41, 420,239,147.87 and 218,236,471.08
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Solution
The fourth proportional to 280,410,082.41, 420,239,147.87 and 218,236,471.08 is: 327,062,093.68
Step by Step Solution
- Step 1: Write the proportion equation
280,410,082.41 : 420,239,147.87 = 218,236,471.08 : x - Step 2: Convert to fraction form
280,410,082.41/420,239,147.87 = 218,236,471.08/x - Step 3: Cross multiply
280,410,082.41x = 420,239,147.87 × 218,236,471.08 - Step 4: Simplify right side
280,410,082.41x = 91,711,508,640,815,104 - Step 5: Solve for x
x = 91,711,508,640,815,104/280,410,082.41 - Step 6: Final answer
x = 327,062,093.68
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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.