Finding the Fourth Proportional to 79,115,915.20, 118,673,872.80 and 48,504,913.60
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Solution
The fourth proportional to 79,115,915.20, 118,673,872.80 and 48,504,913.60 is: 72,757,370.40
Step by Step Solution
- Step 1: Write the proportion equation
79,115,915.20 : 118,673,872.80 = 48,504,913.60 : x - Step 2: Convert to fraction form
79,115,915.20/118,673,872.80 = 48,504,913.60/x - Step 3: Cross multiply
79,115,915.20x = 118,673,872.80 × 48,504,913.60 - Step 4: Simplify right side
79,115,915.20x = 5,756,265,946,741,390 - Step 5: Solve for x
x = 5,756,265,946,741,390/79,115,915.20 - Step 6: Final answer
x = 72,757,370.40
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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.