Finding the Fourth Proportional to 154,974,872.06, 213,865,304.26 and 85,360,252.96
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Solution
The fourth proportional to 154,974,872.06, 213,865,304.26 and 85,360,252.96 is: 117,797,138.51
Step by Step Solution
- Step 1: Write the proportion equation
154,974,872.06 : 213,865,304.26 = 85,360,252.96 : x - Step 2: Convert to fraction form
154,974,872.06/213,865,304.26 = 85,360,252.96/x - Step 3: Cross multiply
154,974,872.06x = 213,865,304.26 × 85,360,252.96 - Step 4: Simplify right side
154,974,872.06x = 18,255,596,469,504,836 - Step 5: Solve for x
x = 18,255,596,469,504,836/154,974,872.06 - Step 6: Final answer
x = 117,797,138.51
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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.