Finding the Fourth Proportional to 49,966,821.02, 74,918,121.50 and 20,840,754.15
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Solution
The fourth proportional to 49,966,821.02, 74,918,121.50 and 20,840,754.15 is: 31,247,738.39
Step by Step Solution
- Step 1: Write the proportion equation
49,966,821.02 : 74,918,121.50 = 20,840,754.15 : x - Step 2: Convert to fraction form
49,966,821.02/74,918,121.50 = 20,840,754.15/x - Step 3: Cross multiply
49,966,821.02x = 74,918,121.50 × 20,840,754.15 - Step 4: Simplify right side
49,966,821.02x = 1,561,350,151,561,329 - Step 5: Solve for x
x = 1,561,350,151,561,329/49,966,821.02 - Step 6: Final answer
x = 31,247,738.39
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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.