Finding the Fourth Proportional to 218,304,873.70, 327,457,310.55 and 132,211,431.70
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Solution
The fourth proportional to 218,304,873.70, 327,457,310.55 and 132,211,431.70 is: 198,317,147.55
Step by Step Solution
- Step 1: Write the proportion equation
218,304,873.70 : 327,457,310.55 = 132,211,431.70 : x - Step 2: Convert to fraction form
218,304,873.70/327,457,310.55 = 132,211,431.70/x - Step 3: Cross multiply
218,304,873.70x = 327,457,310.55 × 132,211,431.70 - Step 4: Simplify right side
218,304,873.70x = 43,293,599,848,447,016 - Step 5: Solve for x
x = 43,293,599,848,447,016/218,304,873.70 - Step 6: Final answer
x = 198,317,147.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.