Finding the Fourth Proportional to 135,351,761.33, 186,780,049.79 and 76,626,608.19
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Solution
The fourth proportional to 135,351,761.33, 186,780,049.79 and 76,626,608.19 is: 105,741,673.05
Step by Step Solution
- Step 1: Write the proportion equation
135,351,761.33 : 186,780,049.79 = 76,626,608.19 : x - Step 2: Convert to fraction form
135,351,761.33/186,780,049.79 = 76,626,608.19/x - Step 3: Cross multiply
135,351,761.33x = 186,780,049.79 × 76,626,608.19 - Step 4: Simplify right side
135,351,761.33x = 14,312,321,692,967,020 - Step 5: Solve for x
x = 14,312,321,692,967,020/135,351,761.33 - Step 6: Final answer
x = 105,741,673.05
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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.