Finding the Fourth Proportional to 5,776,757.84, 7,972,174.88 and 3,198,438.56
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Solution
The fourth proportional to 5,776,757.84, 7,972,174.88 and 3,198,438.56 is: 4,413,983.11
Step by Step Solution
- Step 1: Write the proportion equation
5,776,757.84 : 7,972,174.88 = 3,198,438.56 : x - Step 2: Convert to fraction form
5,776,757.84/7,972,174.88 = 3,198,438.56/x - Step 3: Cross multiply
5,776,757.84x = 7,972,174.88 × 3,198,438.56 - Step 4: Simplify right side
5,776,757.84x = 25,498,511,487,402.31 - Step 5: Solve for x
x = 25,498,511,487,402.31/5,776,757.84 - Step 6: Final answer
x = 4,413,983.11
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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.