Finding the Fourth Proportional to 11,869,672.19, 17,824,883.68 and 7,285,576.72
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Solution
The fourth proportional to 11,869,672.19, 17,824,883.68 and 7,285,576.72 is: 10,940,871.44
Step by Step Solution
- Step 1: Write the proportion equation
11,869,672.19 : 17,824,883.68 = 7,285,576.72 : x - Step 2: Convert to fraction form
11,869,672.19/17,824,883.68 = 7,285,576.72/x - Step 3: Cross multiply
11,869,672.19x = 17,824,883.68 × 7,285,576.72 - Step 4: Simplify right side
11,869,672.19x = 129,864,557,512,939.77 - Step 5: Solve for x
x = 129,864,557,512,939.77/11,869,672.19 - Step 6: Final answer
x = 10,940,871.44
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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.