Finding the Fourth Proportional to 7,212,186.24, 9,952,787.52 and 3,949,015.68
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Solution
The fourth proportional to 7,212,186.24, 9,952,787.52 and 3,949,015.68 is: 5,449,625.49
Step by Step Solution
- Step 1: Write the proportion equation
7,212,186.24 : 9,952,787.52 = 3,949,015.68 : x - Step 2: Convert to fraction form
7,212,186.24/9,952,787.52 = 3,949,015.68/x - Step 3: Cross multiply
7,212,186.24x = 9,952,787.52 × 3,949,015.68 - Step 4: Simplify right side
7,212,186.24x = 39,303,713,976,188.31 - Step 5: Solve for x
x = 39,303,713,976,188.31/7,212,186.24 - Step 6: Final answer
x = 5,449,625.49
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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.