Finding the Fourth Proportional to 11,543,916.18, 17,281,352.47 and 6,981,156.21
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Solution
The fourth proportional to 11,543,916.18, 17,281,352.47 and 6,981,156.21 is: 10,450,857.34
Step by Step Solution
- Step 1: Write the proportion equation
11,543,916.18 : 17,281,352.47 = 6,981,156.21 : x - Step 2: Convert to fraction form
11,543,916.18/17,281,352.47 = 6,981,156.21/x - Step 3: Cross multiply
11,543,916.18x = 17,281,352.47 × 6,981,156.21 - Step 4: Simplify right side
11,543,916.18x = 120,643,821,069,935.94 - Step 5: Solve for x
x = 120,643,821,069,935.94/11,543,916.18 - Step 6: Final answer
x = 10,450,857.34
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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.