Finding the Fourth Proportional to 5,776,762.05, 7,972,180.70 and 3,198,442.77
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Solution
The fourth proportional to 5,776,762.05, 7,972,180.70 and 3,198,442.77 is: 4,413,988.92
Step by Step Solution
- Step 1: Write the proportion equation
5,776,762.05 : 7,972,180.70 = 3,198,442.77 : x - Step 2: Convert to fraction form
5,776,762.05/7,972,180.70 = 3,198,442.77/x - Step 3: Cross multiply
5,776,762.05x = 7,972,180.70 × 3,198,442.77 - Step 4: Simplify right side
5,776,762.05x = 25,498,563,705,056.33 - Step 5: Solve for x
x = 25,498,563,705,056.33/5,776,762.05 - Step 6: Final answer
x = 4,413,988.92
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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.