Finding the Fourth Proportional to 18,135,047.70, 27,202,571.55 and 15,773,087.70
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Solution
The fourth proportional to 18,135,047.70, 27,202,571.55 and 15,773,087.70 is: 23,659,631.55
Step by Step Solution
- Step 1: Write the proportion equation
18,135,047.70 : 27,202,571.55 = 15,773,087.70 : x - Step 2: Convert to fraction form
18,135,047.70/27,202,571.55 = 15,773,087.70/x - Step 3: Cross multiply
18,135,047.70x = 27,202,571.55 × 15,773,087.70 - Step 4: Simplify right side
18,135,047.70x = 429,068,546,723,674.94 - Step 5: Solve for x
x = 429,068,546,723,674.94/18,135,047.70 - Step 6: Final answer
x = 23,659,631.55
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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.