Finding the Fourth Proportional to 10,857,757.62, 14,989,522.55 and 8,371,548.10
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Solution
The fourth proportional to 10,857,757.62, 14,989,522.55 and 8,371,548.10 is: 11,557,221.43
Step by Step Solution
- Step 1: Write the proportion equation
10,857,757.62 : 14,989,522.55 = 8,371,548.10 : x - Step 2: Convert to fraction form
10,857,757.62/14,989,522.55 = 8,371,548.10/x - Step 3: Cross multiply
10,857,757.62x = 14,989,522.55 × 8,371,548.10 - Step 4: Simplify right side
10,857,757.62x = 125,485,509,023,359.66 - Step 5: Solve for x
x = 125,485,509,023,359.66/10,857,757.62 - Step 6: Final answer
x = 11,557,221.43
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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.