Finding the Fourth Proportional to 8,434,986.84, 12,642,912.14 and 3,876,614.13
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Solution
The fourth proportional to 8,434,986.84, 12,642,912.14 and 3,876,614.13 is: 5,810,523.81
Step by Step Solution
- Step 1: Write the proportion equation
8,434,986.84 : 12,642,912.14 = 3,876,614.13 : x - Step 2: Convert to fraction form
8,434,986.84/12,642,912.14 = 3,876,614.13/x - Step 3: Cross multiply
8,434,986.84x = 12,642,912.14 × 3,876,614.13 - Step 4: Simplify right side
8,434,986.84x = 49,011,691,874,300.39 - Step 5: Solve for x
x = 49,011,691,874,300.39/8,434,986.84 - Step 6: Final answer
x = 5,810,523.81
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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.