Finding the Fourth Proportional to 21,560,790.76, 32,330,367.58 and 7,178,792.68
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Solution
The fourth proportional to 21,560,790.76, 32,330,367.58 and 7,178,792.68 is: 10,764,586.92
Step by Step Solution
- Step 1: Write the proportion equation
21,560,790.76 : 32,330,367.58 = 7,178,792.68 : x - Step 2: Convert to fraction form
21,560,790.76/32,330,367.58 = 7,178,792.68/x - Step 3: Cross multiply
21,560,790.76x = 32,330,367.58 × 7,178,792.68 - Step 4: Simplify right side
21,560,790.76x = 232,093,006,125,013.28 - Step 5: Solve for x
x = 232,093,006,125,013.28/21,560,790.76 - Step 6: Final answer
x = 10,764,586.92
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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.