Finding the Fourth Proportional to 198,169,246.60, 297,253,869.90 and 68,733,838.60
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Solution
The fourth proportional to 198,169,246.60, 297,253,869.90 and 68,733,838.60 is: 103,100,757.90
Step by Step Solution
- Step 1: Write the proportion equation
198,169,246.60 : 297,253,869.90 = 68,733,838.60 : x - Step 2: Convert to fraction form
198,169,246.60/297,253,869.90 = 68,733,838.60/x - Step 3: Cross multiply
198,169,246.60x = 297,253,869.90 × 68,733,838.60 - Step 4: Simplify right side
198,169,246.60x = 20,431,399,516,931,996 - Step 5: Solve for x
x = 20,431,399,516,931,996/198,169,246.60 - Step 6: Final answer
x = 103,100,757.90
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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.