Finding the Fourth Proportional to 15,691,001.49, 21,659,455.86 and 11,782,049.68
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Solution
The fourth proportional to 15,691,001.49, 21,659,455.86 and 11,782,049.68 is: 16,263,639.08
Step by Step Solution
- Step 1: Write the proportion equation
15,691,001.49 : 21,659,455.86 = 11,782,049.68 : x - Step 2: Convert to fraction form
15,691,001.49/21,659,455.86 = 11,782,049.68/x - Step 3: Cross multiply
15,691,001.49x = 21,659,455.86 × 11,782,049.68 - Step 4: Simplify right side
15,691,001.49x = 255,192,784,984,287.12 - Step 5: Solve for x
x = 255,192,784,984,287.12/15,691,001.49 - Step 6: Final answer
x = 16,263,639.08
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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.