Finding the Fourth Proportional to 7,278,992.44, 10,916,123.22 and 2,419,990.84
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Solution
The fourth proportional to 7,278,992.44, 10,916,123.22 and 2,419,990.84 is: 3,629,199.84
Step by Step Solution
- Step 1: Write the proportion equation
7,278,992.44 : 10,916,123.22 = 2,419,990.84 : x - Step 2: Convert to fraction form
7,278,992.44/10,916,123.22 = 2,419,990.84/x - Step 3: Cross multiply
7,278,992.44x = 10,916,123.22 × 2,419,990.84 - Step 4: Simplify right side
7,278,992.44x = 26,416,918,200,711.30 - Step 5: Solve for x
x = 26,416,918,200,711.30/7,278,992.44 - Step 6: Final answer
x = 3,629,199.84
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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.