Finding the Fourth Proportional to 5,776,750.78, 7,972,165.13 and 3,198,431.48
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Solution
The fourth proportional to 5,776,750.78, 7,972,165.13 and 3,198,431.48 is: 4,413,973.33
Step by Step Solution
- Step 1: Write the proportion equation
5,776,750.78 : 7,972,165.13 = 3,198,431.48 : x - Step 2: Convert to fraction form
5,776,750.78/7,972,165.13 = 3,198,431.48/x - Step 3: Cross multiply
5,776,750.78x = 7,972,165.13 × 3,198,431.48 - Step 4: Simplify right side
5,776,750.78x = 25,498,423,859,697.31 - Step 5: Solve for x
x = 25,498,423,859,697.31/5,776,750.78 - Step 6: Final answer
x = 4,413,973.33
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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.