Finding the Fourth Proportional to 217,744,343.40, 326,609,516.70 and 72,184,621.80
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Solution
The fourth proportional to 217,744,343.40, 326,609,516.70 and 72,184,621.80 is: 108,274,612.65
Step by Step Solution
- Step 1: Write the proportion equation
217,744,343.40 : 326,609,516.70 = 72,184,621.80 : x - Step 2: Convert to fraction form
217,744,343.40/326,609,516.70 = 72,184,621.80/x - Step 3: Cross multiply
217,744,343.40x = 326,609,516.70 × 72,184,621.80 - Step 4: Simplify right side
217,744,343.40x = 23,576,184,439,270,284 - Step 5: Solve for x
x = 23,576,184,439,270,284/217,744,343.40 - Step 6: Final answer
x = 108,274,612.65
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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.