Finding the Fourth Proportional to 21,193,131.68, 31,747,133.37 and 9,662,738.02
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Solution
The fourth proportional to 21,193,131.68, 31,747,133.37 and 9,662,738.02 is: 14,474,700.45
Step by Step Solution
- Step 1: Write the proportion equation
21,193,131.68 : 31,747,133.37 = 9,662,738.02 : x - Step 2: Convert to fraction form
21,193,131.68/31,747,133.37 = 9,662,738.02/x - Step 3: Cross multiply
21,193,131.68x = 31,747,133.37 × 9,662,738.02 - Step 4: Simplify right side
21,193,131.68x = 306,764,232,661,876 - Step 5: Solve for x
x = 306,764,232,661,876/21,193,131.68 - Step 6: Final answer
x = 14,474,700.45
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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.