Finding the Fourth Proportional to 21,182,233.84, 29,229,143.80 and 11,887,672.13
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Solution
The fourth proportional to 21,182,233.84, 29,229,143.80 and 11,887,672.13 is: 16,403,674.93
Step by Step Solution
- Step 1: Write the proportion equation
21,182,233.84 : 29,229,143.80 = 11,887,672.13 : x - Step 2: Convert to fraction form
21,182,233.84/29,229,143.80 = 11,887,672.13/x - Step 3: Cross multiply
21,182,233.84x = 29,229,143.80 × 11,887,672.13 - Step 4: Simplify right side
21,182,233.84x = 347,466,478,135,022.31 - Step 5: Solve for x
x = 347,466,478,135,022.31/21,182,233.84 - Step 6: Final answer
x = 16,403,674.93
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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.