Finding the Fourth Proportional to 289,588,608.20, 434,382,912.30 and 207,534,117.80
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Solution
The fourth proportional to 289,588,608.20, 434,382,912.30 and 207,534,117.80 is: 311,301,176.70
Step by Step Solution
- Step 1: Write the proportion equation
289,588,608.20 : 434,382,912.30 = 207,534,117.80 : x - Step 2: Convert to fraction form
289,588,608.20/434,382,912.30 = 207,534,117.80/x - Step 3: Cross multiply
289,588,608.20x = 434,382,912.30 × 207,534,117.80 - Step 4: Simplify right side
289,588,608.20x = 90,149,274,491,575,280 - Step 5: Solve for x
x = 90,149,274,491,575,280/289,588,608.20 - Step 6: Final answer
x = 311,301,176.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.