Finding the Fourth Proportional to 18,095,663.20, 27,143,494.80 and 15,261,311.20
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Solution
The fourth proportional to 18,095,663.20, 27,143,494.80 and 15,261,311.20 is: 22,891,966.80
Step by Step Solution
- Step 1: Write the proportion equation
18,095,663.20 : 27,143,494.80 = 15,261,311.20 : x - Step 2: Convert to fraction form
18,095,663.20/27,143,494.80 = 15,261,311.20/x - Step 3: Cross multiply
18,095,663.20x = 27,143,494.80 × 15,261,311.20 - Step 4: Simplify right side
18,095,663.20x = 414,245,321,198,381.75 - Step 5: Solve for x
x = 414,245,321,198,381.75/18,095,663.20 - Step 6: Final answer
x = 22,891,966.80
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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.