Finding the Fourth Proportional to 18,411,721.29, 27,586,329.28 and 11,109,838.72
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Solution
The fourth proportional to 18,411,721.29, 27,586,329.28 and 11,109,838.72 is: 16,645,899.88
Step by Step Solution
- Step 1: Write the proportion equation
18,411,721.29 : 27,586,329.28 = 11,109,838.72 : x - Step 2: Convert to fraction form
18,411,721.29/27,586,329.28 = 11,109,838.72/x - Step 3: Cross multiply
18,411,721.29x = 27,586,329.28 × 11,109,838.72 - Step 4: Simplify right side
18,411,721.29x = 306,479,669,225,983.94 - Step 5: Solve for x
x = 306,479,669,225,983.94/18,411,721.29 - Step 6: Final answer
x = 16,645,899.88
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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.