Finding the Fourth Proportional to 3,921,474.94, 5,411,518.22 and 2,179,138.96
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Solution
The fourth proportional to 3,921,474.94, 5,411,518.22 and 2,179,138.96 is: 3,007,146.64
Step by Step Solution
- Step 1: Write the proportion equation
3,921,474.94 : 5,411,518.22 = 2,179,138.96 : x - Step 2: Convert to fraction form
3,921,474.94/5,411,518.22 = 2,179,138.96/x - Step 3: Cross multiply
3,921,474.94x = 5,411,518.22 × 2,179,138.96 - Step 4: Simplify right side
3,921,474.94x = 11,792,450,185,951.85 - Step 5: Solve for x
x = 11,792,450,185,951.85/3,921,474.94 - Step 6: Final answer
x = 3,007,146.64
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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.