Finding the Fourth Proportional to 8,946,991.68, 12,347,198.01 and 5,079,872.67
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Solution
The fourth proportional to 8,946,991.68, 12,347,198.01 and 5,079,872.67 is: 7,010,422.72
Step by Step Solution
- Step 1: Write the proportion equation
8,946,991.68 : 12,347,198.01 = 5,079,872.67 : x - Step 2: Convert to fraction form
8,946,991.68/12,347,198.01 = 5,079,872.67/x - Step 3: Cross multiply
8,946,991.68x = 12,347,198.01 × 5,079,872.67 - Step 4: Simplify right side
8,946,991.68x = 62,722,193,722,077.38 - Step 5: Solve for x
x = 62,722,193,722,077.38/8,946,991.68 - Step 6: Final answer
x = 7,010,422.72
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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.