Finding the Fourth Proportional to 21,330,685.12, 29,436,344.99 and 11,541,129.30
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Solution
The fourth proportional to 21,330,685.12, 29,436,344.99 and 11,541,129.30 is: 15,926,758.18
Step by Step Solution
- Step 1: Write the proportion equation
21,330,685.12 : 29,436,344.99 = 11,541,129.30 : x - Step 2: Convert to fraction form
21,330,685.12/29,436,344.99 = 11,541,129.30/x - Step 3: Cross multiply
21,330,685.12x = 29,436,344.99 × 11,541,129.30 - Step 4: Simplify right side
21,330,685.12x = 339,728,663,591,291.56 - Step 5: Solve for x
x = 339,728,663,591,291.56/21,330,685.12 - Step 6: Final answer
x = 15,926,758.18
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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.