Finding the Fourth Proportional to 18,149,091.72, 25,045,450.05 and 9,889,251.99
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Solution
The fourth proportional to 18,149,091.72, 25,045,450.05 and 9,889,251.99 is: 13,647,006.17
Step by Step Solution
- Step 1: Write the proportion equation
18,149,091.72 : 25,045,450.05 = 9,889,251.99 : x - Step 2: Convert to fraction form
18,149,091.72/25,045,450.05 = 9,889,251.99/x - Step 3: Cross multiply
18,149,091.72x = 25,045,450.05 × 9,889,251.99 - Step 4: Simplify right side
18,149,091.72x = 247,680,766,747,408.12 - Step 5: Solve for x
x = 247,680,766,747,408.12/18,149,091.72 - Step 6: Final answer
x = 13,647,006.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.