Finding the Fourth Proportional to 129,359,872.20, 194,134,286.70 and 91,096,120.20
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Solution
The fourth proportional to 129,359,872.20, 194,134,286.70 and 91,096,120.20 is: 136,710,712.65
Step by Step Solution
- Step 1: Write the proportion equation
129,359,872.20 : 194,134,286.70 = 91,096,120.20 : x - Step 2: Convert to fraction form
129,359,872.20/194,134,286.70 = 91,096,120.20/x - Step 3: Cross multiply
129,359,872.20x = 194,134,286.70 × 91,096,120.20 - Step 4: Simplify right side
129,359,872.20x = 17,684,880,316,164,460 - Step 5: Solve for x
x = 17,684,880,316,164,460/129,359,872.20 - Step 6: Final answer
x = 136,710,712.65
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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.