Finding the Fourth Proportional to 10,907,871.66, 15,080,072.67 and 8,186,893.74
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Solution
The fourth proportional to 10,907,871.66, 15,080,072.67 and 8,186,893.74 is: 11,318,335.64
Step by Step Solution
- Step 1: Write the proportion equation
10,907,871.66 : 15,080,072.67 = 8,186,893.74 : x - Step 2: Convert to fraction form
10,907,871.66/15,080,072.67 = 8,186,893.74/x - Step 3: Cross multiply
10,907,871.66x = 15,080,072.67 × 8,186,893.74 - Step 4: Simplify right side
10,907,871.66x = 123,458,952,540,768.09 - Step 5: Solve for x
x = 123,458,952,540,768.09/10,907,871.66 - Step 6: Final answer
x = 11,318,335.64
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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.