Finding the Fourth Proportional to 7,642,846.24, 11,455,578.08 and 3,993,950.20
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Solution
The fourth proportional to 7,642,846.24, 11,455,578.08 and 3,993,950.20 is: 5,986,383.47
Step by Step Solution
- Step 1: Write the proportion equation
7,642,846.24 : 11,455,578.08 = 3,993,950.20 : x - Step 2: Convert to fraction form
7,642,846.24/11,455,578.08 = 3,993,950.20/x - Step 3: Cross multiply
7,642,846.24x = 11,455,578.08 × 3,993,950.20 - Step 4: Simplify right side
7,642,846.24x = 45,753,008,363,731.62 - Step 5: Solve for x
x = 45,753,008,363,731.62/7,642,846.24 - Step 6: Final answer
x = 5,986,383.47
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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.