Finding the Fourth Proportional to 7,244,621.05, 9,997,816.75 and 3,981,551.44
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Solution
The fourth proportional to 7,244,621.05, 9,997,816.75 and 3,981,551.44 is: 5,494,672.72
Step by Step Solution
- Step 1: Write the proportion equation
7,244,621.05 : 9,997,816.75 = 3,981,551.44 : x - Step 2: Convert to fraction form
7,244,621.05/9,997,816.75 = 3,981,551.44/x - Step 3: Cross multiply
7,244,621.05x = 9,997,816.75 × 3,981,551.44 - Step 4: Simplify right side
7,244,621.05x = 39,806,821,677,818.62 - Step 5: Solve for x
x = 39,806,821,677,818.62/7,244,621.05 - Step 6: Final answer
x = 5,494,672.72
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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.