Finding the Fourth Proportional to 181,992,830.40, 272,989,245.60 and 120,770,827.20
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Solution
The fourth proportional to 181,992,830.40, 272,989,245.60 and 120,770,827.20 is: 181,156,240.80
Step by Step Solution
- Step 1: Write the proportion equation
181,992,830.40 : 272,989,245.60 = 120,770,827.20 : x - Step 2: Convert to fraction form
181,992,830.40/272,989,245.60 = 120,770,827.20/x - Step 3: Cross multiply
181,992,830.40x = 272,989,245.60 × 120,770,827.20 - Step 4: Simplify right side
181,992,830.40x = 32,969,137,007,815,964 - Step 5: Solve for x
x = 32,969,137,007,815,964/181,992,830.40 - Step 6: Final answer
x = 181,156,240.80
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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.