Finding the Fourth Proportional to 214,431,960.44, 321,783,984.81 and 91,611,203.19
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Solution
The fourth proportional to 214,431,960.44, 321,783,984.81 and 91,611,203.19 is: 137,474,926.57
Step by Step Solution
- Step 1: Write the proportion equation
214,431,960.44 : 321,783,984.81 = 91,611,203.19 : x - Step 2: Convert to fraction form
214,431,960.44/321,783,984.81 = 91,611,203.19/x - Step 3: Cross multiply
214,431,960.44x = 321,783,984.81 × 91,611,203.19 - Step 4: Simplify right side
214,431,960.44x = 29,479,018,015,716,784 - Step 5: Solve for x
x = 29,479,018,015,716,784/214,431,960.44 - Step 6: Final answer
x = 137,474,926.57
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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.