Finding the Fourth Proportional to 18,030,912.47, 26,981,718.11 and 15,610,391.63
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Solution
The fourth proportional to 18,030,912.47, 26,981,718.11 and 15,610,391.63 is: 23,359,615.72
Step by Step Solution
- Step 1: Write the proportion equation
18,030,912.47 : 26,981,718.11 = 15,610,391.63 : x - Step 2: Convert to fraction form
18,030,912.47/26,981,718.11 = 15,610,391.63/x - Step 3: Cross multiply
18,030,912.47x = 26,981,718.11 × 15,610,391.63 - Step 4: Simplify right side
18,030,912.47x = 421,195,186,469,311.50 - Step 5: Solve for x
x = 421,195,186,469,311.50/18,030,912.47 - Step 6: Final answer
x = 23,359,615.72
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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.