Finding the Fourth Proportional to 15,579,816, 21,500,217.42 and 8,515,554.84
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Solution
The fourth proportional to 15,579,816, 21,500,217.42 and 8,515,554.84 is: 11,751,504.67
Step by Step Solution
- Step 1: Write the proportion equation
15,579,816 : 21,500,217.42 = 8,515,554.84 : x - Step 2: Convert to fraction form
15,579,816/21,500,217.42 = 8,515,554.84/x - Step 3: Cross multiply
15,579,816x = 21,500,217.42 × 8,515,554.84 - Step 4: Simplify right side
15,579,816x = 183,086,280,511,933.31 - Step 5: Solve for x
x = 183,086,280,511,933.31/15,579,816 - Step 6: Final answer
x = 11,751,504.67
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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.