Finding the Fourth Proportional to 21,333,672.15, 29,440,262.43 and 11,543,901.99
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Solution
The fourth proportional to 21,333,672.15, 29,440,262.43 and 11,543,901.99 is: 15,930,473.74
Step by Step Solution
- Step 1: Write the proportion equation
21,333,672.15 : 29,440,262.43 = 11,543,901.99 : x - Step 2: Convert to fraction form
21,333,672.15/29,440,262.43 = 11,543,901.99/x - Step 3: Cross multiply
21,333,672.15x = 29,440,262.43 × 11,543,901.99 - Step 4: Simplify right side
21,333,672.15x = 339,855,504,051,799.25 - Step 5: Solve for x
x = 339,855,504,051,799.25/21,333,672.15 - Step 6: Final answer
x = 15,930,473.74
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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.