Finding the Fourth Proportional to 137,890,696.68, 206,772,453.18 and 40,811,691.24
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Solution
The fourth proportional to 137,890,696.68, 206,772,453.18 and 40,811,691.24 is: 61,198,715.50
Step by Step Solution
- Step 1: Write the proportion equation
137,890,696.68 : 206,772,453.18 = 40,811,691.24 : x - Step 2: Convert to fraction form
137,890,696.68/206,772,453.18 = 40,811,691.24/x - Step 3: Cross multiply
137,890,696.68x = 206,772,453.18 × 40,811,691.24 - Step 4: Simplify right side
137,890,696.68x = 8,438,733,516,119,517 - Step 5: Solve for x
x = 8,438,733,516,119,517/137,890,696.68 - Step 6: Final answer
x = 61,198,715.50
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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.