Finding the Fourth Proportional to 10,982,121.12, 16,463,383.92 and 5,587,754.40
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Solution
The fourth proportional to 10,982,121.12, 16,463,383.92 and 5,587,754.40 is: 8,376,646.45
Step by Step Solution
- Step 1: Write the proportion equation
10,982,121.12 : 16,463,383.92 = 5,587,754.40 : x - Step 2: Convert to fraction form
10,982,121.12/16,463,383.92 = 5,587,754.40/x - Step 3: Cross multiply
10,982,121.12x = 16,463,383.92 × 5,587,754.40 - Step 4: Simplify right side
10,982,121.12x = 91,993,345,937,869.25 - Step 5: Solve for x
x = 91,993,345,937,869.25/10,982,121.12 - Step 6: Final answer
x = 8,376,646.45
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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.