Finding the Fourth Proportional to 5,421,013.30, 7,481,232.94 and 3,245,135.42
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Solution
The fourth proportional to 5,421,013.30, 7,481,232.94 and 3,245,135.42 is: 4,478,427.31
Step by Step Solution
- Step 1: Write the proportion equation
5,421,013.30 : 7,481,232.94 = 3,245,135.42 : x - Step 2: Convert to fraction form
5,421,013.30/7,481,232.94 = 3,245,135.42/x - Step 3: Cross multiply
5,421,013.30x = 7,481,232.94 × 3,245,135.42 - Step 4: Simplify right side
5,421,013.30x = 24,277,613,998,864.73 - Step 5: Solve for x
x = 24,277,613,998,864.73/5,421,013.30 - Step 6: Final answer
x = 4,478,427.31
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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.