Finding the Fourth Proportional to 5,534,942.12, 7,638,409.78 and 3,211,659.62
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Solution
The fourth proportional to 5,534,942.12, 7,638,409.78 and 3,211,659.62 is: 4,432,200.32
Step by Step Solution
- Step 1: Write the proportion equation
5,534,942.12 : 7,638,409.78 = 3,211,659.62 : x - Step 2: Convert to fraction form
5,534,942.12/7,638,409.78 = 3,211,659.62/x - Step 3: Cross multiply
5,534,942.12x = 7,638,409.78 × 3,211,659.62 - Step 4: Simplify right side
5,534,942.12x = 24,531,972,251,439.09 - Step 5: Solve for x
x = 24,531,972,251,439.09/5,534,942.12 - Step 6: Final answer
x = 4,432,200.32
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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.