Finding the Fourth Proportional to 5,776,748.22, 7,972,161.64 and 3,198,428.94
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Solution
The fourth proportional to 5,776,748.22, 7,972,161.64 and 3,198,428.94 is: 4,413,969.86
Step by Step Solution
- Step 1: Write the proportion equation
5,776,748.22 : 7,972,161.64 = 3,198,428.94 : x - Step 2: Convert to fraction form
5,776,748.22/7,972,161.64 = 3,198,428.94/x - Step 3: Cross multiply
5,776,748.22x = 7,972,161.64 × 3,198,428.94 - Step 4: Simplify right side
5,776,748.22x = 25,498,392,503,733.86 - Step 5: Solve for x
x = 25,498,392,503,733.86/5,776,748.22 - Step 6: Final answer
x = 4,413,969.86
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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.