Finding the Fourth Proportional to 11,579,715.32, 15,981,923.70 and 6,424,737.62
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Solution
The fourth proportional to 11,579,715.32, 15,981,923.70 and 6,424,737.62 is: 8,867,201.27
Step by Step Solution
- Step 1: Write the proportion equation
11,579,715.32 : 15,981,923.70 = 6,424,737.62 : x - Step 2: Convert to fraction form
11,579,715.32/15,981,923.70 = 6,424,737.62/x - Step 3: Cross multiply
11,579,715.32x = 15,981,923.70 × 6,424,737.62 - Step 4: Simplify right side
11,579,715.32x = 102,679,666,355,449.97 - Step 5: Solve for x
x = 102,679,666,355,449.97/11,579,715.32 - Step 6: Final answer
x = 8,867,201.27
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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.