Finding the Fourth Proportional to 132,912,138.60, 199,368,207.90 and 129,926,154.60
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Solution
The fourth proportional to 132,912,138.60, 199,368,207.90 and 129,926,154.60 is: 194,889,231.90
Step by Step Solution
- Step 1: Write the proportion equation
132,912,138.60 : 199,368,207.90 = 129,926,154.60 : x - Step 2: Convert to fraction form
132,912,138.60/199,368,207.90 = 129,926,154.60/x - Step 3: Cross multiply
132,912,138.60x = 199,368,207.90 × 129,926,154.60 - Step 4: Simplify right side
132,912,138.60x = 25,903,144,601,940,340 - Step 5: Solve for x
x = 25,903,144,601,940,340/132,912,138.60 - Step 6: Final answer
x = 194,889,231.90
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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.