Finding the Fourth Proportional to 129,512,796.60, 194,244,311.70 and 38,639,350.20
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Solution
The fourth proportional to 129,512,796.60, 194,244,311.70 and 38,639,350.20 is: 57,951,601.55
Step by Step Solution
- Step 1: Write the proportion equation
129,512,796.60 : 194,244,311.70 = 38,639,350.20 : x - Step 2: Convert to fraction form
129,512,796.60/194,244,311.70 = 38,639,350.20/x - Step 3: Cross multiply
129,512,796.60x = 194,244,311.70 × 38,639,350.20 - Step 4: Simplify right side
129,512,796.60x = 7,505,473,984,134,257 - Step 5: Solve for x
x = 7,505,473,984,134,257/129,512,796.60 - Step 6: Final answer
x = 57,951,601.55
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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.