Finding the Fourth Proportional to 131,163,010.80, 196,744,516.20 and 40,286,599.80
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Solution
The fourth proportional to 131,163,010.80, 196,744,516.20 and 40,286,599.80 is: 60,429,899.70
Step by Step Solution
- Step 1: Write the proportion equation
131,163,010.80 : 196,744,516.20 = 40,286,599.80 : x - Step 2: Convert to fraction form
131,163,010.80/196,744,516.20 = 40,286,599.80/x - Step 3: Cross multiply
131,163,010.80x = 196,744,516.20 × 40,286,599.80 - Step 4: Simplify right side
131,163,010.80x = 7,926,167,586,994,016 - Step 5: Solve for x
x = 7,926,167,586,994,016/131,163,010.80 - Step 6: Final answer
x = 60,429,899.70
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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.