Finding the Fourth Proportional to 129,359,838.70, 194,134,236.45 and 91,096,086.70
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Solution
The fourth proportional to 129,359,838.70, 194,134,236.45 and 91,096,086.70 is: 136,710,662.39
Step by Step Solution
- Step 1: Write the proportion equation
129,359,838.70 : 194,134,236.45 = 91,096,086.70 : x - Step 2: Convert to fraction form
129,359,838.70/194,134,236.45 = 91,096,086.70/x - Step 3: Cross multiply
129,359,838.70x = 194,134,236.45 × 91,096,086.70 - Step 4: Simplify right side
129,359,838.70x = 17,684,869,235,087,500 - Step 5: Solve for x
x = 17,684,869,235,087,500/129,359,838.70 - Step 6: Final answer
x = 136,710,662.39
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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.