Finding the Fourth Proportional to 6,415,932.75, 8,851,807.49 and 3,660,640.80
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Solution
The fourth proportional to 6,415,932.75, 8,851,807.49 and 3,660,640.80 is: 5,050,440.66
Step by Step Solution
- Step 1: Write the proportion equation
6,415,932.75 : 8,851,807.49 = 3,660,640.80 : x - Step 2: Convert to fraction form
6,415,932.75/8,851,807.49 = 3,660,640.80/x - Step 3: Cross multiply
6,415,932.75x = 8,851,807.49 × 3,660,640.80 - Step 4: Simplify right side
6,415,932.75x = 32,403,287,633,336.38 - Step 5: Solve for x
x = 32,403,287,633,336.38/6,415,932.75 - Step 6: Final answer
x = 5,050,440.66
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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.