Finding the Fourth Proportional to 221,154,370.44, 305,199,517.29 and 120,689,294.37
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Solution
The fourth proportional to 221,154,370.44, 305,199,517.29 and 120,689,294.37 is: 166,554,765.84
Step by Step Solution
- Step 1: Write the proportion equation
221,154,370.44 : 305,199,517.29 = 120,689,294.37 : x - Step 2: Convert to fraction form
221,154,370.44/305,199,517.29 = 120,689,294.37/x - Step 3: Cross multiply
221,154,370.44x = 305,199,517.29 × 120,689,294.37 - Step 4: Simplify right side
221,154,370.44x = 36,834,314,383,794,720 - Step 5: Solve for x
x = 36,834,314,383,794,720/221,154,370.44 - Step 6: Final answer
x = 166,554,765.84
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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.