Finding the Fourth Proportional to 11,718,133.43, 16,171,153.47 and 6,491,221.66
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Solution
The fourth proportional to 11,718,133.43, 16,171,153.47 and 6,491,221.66 is: 8,957,957.53
Step by Step Solution
- Step 1: Write the proportion equation
11,718,133.43 : 16,171,153.47 = 6,491,221.66 : x - Step 2: Convert to fraction form
11,718,133.43/16,171,153.47 = 6,491,221.66/x - Step 3: Cross multiply
11,718,133.43x = 16,171,153.47 × 6,491,221.66 - Step 4: Simplify right side
11,718,133.43x = 104,970,541,558,336.28 - Step 5: Solve for x
x = 104,970,541,558,336.28/11,718,133.43 - Step 6: Final answer
x = 8,957,957.53
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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.