Finding the Fourth Proportional to 18,397,190.70, 27,595,786.05 and 15,527,409.30
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Solution
The fourth proportional to 18,397,190.70, 27,595,786.05 and 15,527,409.30 is: 23,291,113.95
Step by Step Solution
- Step 1: Write the proportion equation
18,397,190.70 : 27,595,786.05 = 15,527,409.30 : x - Step 2: Convert to fraction form
18,397,190.70/27,595,786.05 = 15,527,409.30/x - Step 3: Cross multiply
18,397,190.70x = 27,595,786.05 × 15,527,409.30 - Step 4: Simplify right side
18,397,190.70x = 428,491,064,953,580.31 - Step 5: Solve for x
x = 428,491,064,953,580.31/18,397,190.70 - Step 6: Final answer
x = 23,291,113.95
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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.