Finding the Fourth Proportional to 21,182,273.27, 29,229,197.99 and 11,887,711.46
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Solution
The fourth proportional to 21,182,273.27, 29,229,197.99 and 11,887,711.46 is: 16,403,729.07
Step by Step Solution
- Step 1: Write the proportion equation
21,182,273.27 : 29,229,197.99 = 11,887,711.46 : x - Step 2: Convert to fraction form
21,182,273.27/29,229,197.99 = 11,887,711.46/x - Step 3: Cross multiply
21,182,273.27x = 29,229,197.99 × 11,887,711.46 - Step 4: Simplify right side
21,182,273.27x = 347,468,271,706,747.44 - Step 5: Solve for x
x = 347,468,271,706,747.44/21,182,273.27 - Step 6: Final answer
x = 16,403,729.07
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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.