Finding the Fourth Proportional to 20,412,496.99, 30,578,651.79 and 13,474,838.94
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Solution
The fourth proportional to 20,412,496.99, 30,578,651.79 and 13,474,838.94 is: 20,185,791.48
Step by Step Solution
- Step 1: Write the proportion equation
20,412,496.99 : 30,578,651.79 = 13,474,838.94 : x - Step 2: Convert to fraction form
20,412,496.99/30,578,651.79 = 13,474,838.94/x - Step 3: Cross multiply
20,412,496.99x = 30,578,651.79 × 13,474,838.94 - Step 4: Simplify right side
20,412,496.99x = 412,042,407,872,592.69 - Step 5: Solve for x
x = 412,042,407,872,592.69/20,412,496.99 - Step 6: Final answer
x = 20,185,791.48
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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.