Finding the Fourth Proportional to 151,554,241.76, 209,129,235.84 and 111,882,872.12
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Solution
The fourth proportional to 151,554,241.76, 209,129,235.84 and 111,882,872.12 is: 154,386,833.90
Step by Step Solution
- Step 1: Write the proportion equation
151,554,241.76 : 209,129,235.84 = 111,882,872.12 : x - Step 2: Convert to fraction form
151,554,241.76/209,129,235.84 = 111,882,872.12/x - Step 3: Cross multiply
151,554,241.76x = 209,129,235.84 × 111,882,872.12 - Step 4: Simplify right side
151,554,241.76x = 23,397,979,550,040,044 - Step 5: Solve for x
x = 23,397,979,550,040,044/151,554,241.76 - Step 6: Final answer
x = 154,386,833.90
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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.