Finding the Fourth Proportional to 21,481,070.12, 29,644,118.34 and 11,691,576.44
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Solution
The fourth proportional to 21,481,070.12, 29,644,118.34 and 11,691,576.44 is: 16,134,506.97
Step by Step Solution
- Step 1: Write the proportion equation
21,481,070.12 : 29,644,118.34 = 11,691,576.44 : x - Step 2: Convert to fraction form
21,481,070.12/29,644,118.34 = 11,691,576.44/x - Step 3: Cross multiply
21,481,070.12x = 29,644,118.34 × 11,691,576.44 - Step 4: Simplify right side
21,481,070.12x = 346,586,475,568,515.88 - Step 5: Solve for x
x = 346,586,475,568,515.88/21,481,070.12 - Step 6: Final answer
x = 16,134,506.97
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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.