Finding the Fourth Proportional to 18,220,193.97, 27,330,342.80 and 5,267,399.08
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Solution
The fourth proportional to 18,220,193.97, 27,330,342.80 and 5,267,399.08 is: 7,901,113.61
Step by Step Solution
- Step 1: Write the proportion equation
18,220,193.97 : 27,330,342.80 = 5,267,399.08 : x - Step 2: Convert to fraction form
18,220,193.97/27,330,342.80 = 5,267,399.08/x - Step 3: Cross multiply
18,220,193.97x = 27,330,342.80 × 5,267,399.08 - Step 4: Simplify right side
18,220,193.97x = 143,959,822,552,861.19 - Step 5: Solve for x
x = 143,959,822,552,861.19/18,220,193.97 - Step 6: Final answer
x = 7,901,113.61
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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.