Finding the Fourth Proportional to 311,157,380.76, 466,786,724.16 and 145,326,715.68
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Solution
The fourth proportional to 311,157,380.76, 466,786,724.16 and 145,326,715.68 is: 218,013,731.12
Step by Step Solution
- Step 1: Write the proportion equation
311,157,380.76 : 466,786,724.16 = 145,326,715.68 : x - Step 2: Convert to fraction form
311,157,380.76/466,786,724.16 = 145,326,715.68/x - Step 3: Cross multiply
311,157,380.76x = 466,786,724.16 × 145,326,715.68 - Step 4: Simplify right side
311,157,380.76x = 67,836,581,545,198,912 - Step 5: Solve for x
x = 67,836,581,545,198,912/311,157,380.76 - Step 6: Final answer
x = 218,013,731.12
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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.