Finding the Fourth Proportional to 8,381,866.50, 11,575,757.64 and 5,775,148.44
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Solution
The fourth proportional to 8,381,866.50, 11,575,757.64 and 5,775,148.44 is: 7,975,755.60
Step by Step Solution
- Step 1: Write the proportion equation
8,381,866.50 : 11,575,757.64 = 5,775,148.44 : x - Step 2: Convert to fraction form
8,381,866.50/11,575,757.64 = 5,775,148.44/x - Step 3: Cross multiply
8,381,866.50x = 11,575,757.64 × 5,775,148.44 - Step 4: Simplify right side
8,381,866.50x = 66,851,718,676,464.09 - Step 5: Solve for x
x = 66,851,718,676,464.09/8,381,866.50 - Step 6: Final answer
x = 7,975,755.60
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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.