Finding the Fourth Proportional to 8,538,415.62, 12,806,676.87 and 2,148,669.70
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Solution
The fourth proportional to 8,538,415.62, 12,806,676.87 and 2,148,669.70 is: 3,222,766.35
Step by Step Solution
- Step 1: Write the proportion equation
8,538,415.62 : 12,806,676.87 = 2,148,669.70 : x - Step 2: Convert to fraction form
8,538,415.62/12,806,676.87 = 2,148,669.70/x - Step 3: Cross multiply
8,538,415.62x = 12,806,676.87 × 2,148,669.70 - Step 4: Simplify right side
8,538,415.62x = 27,517,318,548,259.84 - Step 5: Solve for x
x = 27,517,318,548,259.84/8,538,415.62 - Step 6: Final answer
x = 3,222,766.35
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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.