Finding the Fourth Proportional to 15,754,759.20, 21,741,550.20 and 8,511,415.20
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Solution
The fourth proportional to 15,754,759.20, 21,741,550.20 and 8,511,415.20 is: 11,745,743.52
Step by Step Solution
- Step 1: Write the proportion equation
15,754,759.20 : 21,741,550.20 = 8,511,415.20 : x - Step 2: Convert to fraction form
15,754,759.20/21,741,550.20 = 8,511,415.20/x - Step 3: Cross multiply
15,754,759.20x = 21,741,550.20 × 8,511,415.20 - Step 4: Simplify right side
15,754,759.20x = 185,051,360,843,843.03 - Step 5: Solve for x
x = 185,051,360,843,843.03/15,754,759.20 - Step 6: Final answer
x = 11,745,743.52
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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.