Finding the Fourth Proportional to 297,217,008.40, 445,825,512.60 and 180,990,861.70
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Solution
The fourth proportional to 297,217,008.40, 445,825,512.60 and 180,990,861.70 is: 271,486,292.55
Step by Step Solution
- Step 1: Write the proportion equation
297,217,008.40 : 445,825,512.60 = 180,990,861.70 : x - Step 2: Convert to fraction form
297,217,008.40/445,825,512.60 = 180,990,861.70/x - Step 3: Cross multiply
297,217,008.40x = 445,825,512.60 × 180,990,861.70 - Step 4: Simplify right side
297,217,008.40x = 80,690,343,693,318,208 - Step 5: Solve for x
x = 80,690,343,693,318,208/297,217,008.40 - Step 6: Final answer
x = 271,486,292.55
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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.