Finding the Fourth Proportional to 7,540,381.26, 10,405,415.25 and 4,102,635.96
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Solution
The fourth proportional to 7,540,381.26, 10,405,415.25 and 4,102,635.96 is: 5,661,468.47
Step by Step Solution
- Step 1: Write the proportion equation
7,540,381.26 : 10,405,415.25 = 4,102,635.96 : x - Step 2: Convert to fraction form
7,540,381.26/10,405,415.25 = 4,102,635.96/x - Step 3: Cross multiply
7,540,381.26x = 10,405,415.25 × 4,102,635.96 - Step 4: Simplify right side
7,540,381.26x = 42,689,630,783,382.39 - Step 5: Solve for x
x = 42,689,630,783,382.39/7,540,381.26 - Step 6: Final answer
x = 5,661,468.47
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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.