Finding the Fourth Proportional to 7,378,990.48, 11,063,716.44 and 2,891,720.08
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Solution
The fourth proportional to 7,378,990.48, 11,063,716.44 and 2,891,720.08 is: 4,335,711.11
Step by Step Solution
- Step 1: Write the proportion equation
7,378,990.48 : 11,063,716.44 = 2,891,720.08 : x - Step 2: Convert to fraction form
7,378,990.48/11,063,716.44 = 2,891,720.08/x - Step 3: Cross multiply
7,378,990.48x = 11,063,716.44 × 2,891,720.08 - Step 4: Simplify right side
7,378,990.48x = 31,993,170,988,974.11 - Step 5: Solve for x
x = 31,993,170,988,974.11/7,378,990.48 - Step 6: Final answer
x = 4,335,711.11
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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.