Finding the Fourth Proportional to 193,965,414.30, 290,948,121.45 and 172,920,350.70
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Solution
The fourth proportional to 193,965,414.30, 290,948,121.45 and 172,920,350.70 is: 259,380,526.05
Step by Step Solution
- Step 1: Write the proportion equation
193,965,414.30 : 290,948,121.45 = 172,920,350.70 : x - Step 2: Convert to fraction form
193,965,414.30/290,948,121.45 = 172,920,350.70/x - Step 3: Cross multiply
193,965,414.30x = 290,948,121.45 × 172,920,350.70 - Step 4: Simplify right side
193,965,414.30x = 50,310,851,196,640,184 - Step 5: Solve for x
x = 50,310,851,196,640,184/193,965,414.30 - Step 6: Final answer
x = 259,380,526.05
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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.