Finding the Fourth Proportional to 12,262,716.99, 18,382,638.29 and 4,170,162.51
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Solution
The fourth proportional to 12,262,716.99, 18,382,638.29 and 4,170,162.51 is: 6,251,354.33
Step by Step Solution
- Step 1: Write the proportion equation
12,262,716.99 : 18,382,638.29 = 4,170,162.51 : x - Step 2: Convert to fraction form
12,262,716.99/18,382,638.29 = 4,170,162.51/x - Step 3: Cross multiply
12,262,716.99x = 18,382,638.29 × 4,170,162.51 - Step 4: Simplify right side
12,262,716.99x = 76,658,589,010,997.69 - Step 5: Solve for x
x = 76,658,589,010,997.69/12,262,716.99 - Step 6: Final answer
x = 6,251,354.33
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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.