Finding the Fourth Proportional to 18,637,529.26, 27,946,938.84 and 10,858,961.37
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Solution
The fourth proportional to 18,637,529.26, 27,946,938.84 and 10,858,961.37 is: 16,282,991.43
Step by Step Solution
- Step 1: Write the proportion equation
18,637,529.26 : 27,946,938.84 = 10,858,961.37 : x - Step 2: Convert to fraction form
18,637,529.26/27,946,938.84 = 10,858,961.37/x - Step 3: Cross multiply
18,637,529.26x = 27,946,938.84 × 10,858,961.37 - Step 4: Simplify right side
18,637,529.26x = 303,474,729,273,312.56 - Step 5: Solve for x
x = 303,474,729,273,312.56/18,637,529.26 - Step 6: Final answer
x = 16,282,991.43
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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.