Finding the Fourth Proportional to 12,252,715.70, 16,913,981.12 and 8,722,791.05
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Solution
The fourth proportional to 12,252,715.70, 16,913,981.12 and 8,722,791.05 is: 12,041,177.37
Step by Step Solution
- Step 1: Write the proportion equation
12,252,715.70 : 16,913,981.12 = 8,722,791.05 : x - Step 2: Convert to fraction form
12,252,715.70/16,913,981.12 = 8,722,791.05/x - Step 3: Cross multiply
12,252,715.70x = 16,913,981.12 × 8,722,791.05 - Step 4: Simplify right side
12,252,715.70x = 147,537,123,005,221.09 - Step 5: Solve for x
x = 147,537,123,005,221.09/12,252,715.70 - Step 6: Final answer
x = 12,041,177.37
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.