Finding the Fourth Proportional to 6,321,197.18, 8,721,116.97 and 4,115,052.86
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Solution
The fourth proportional to 6,321,197.18, 8,721,116.97 and 4,115,052.86 is: 5,677,382.99
Step by Step Solution
- Step 1: Write the proportion equation
6,321,197.18 : 8,721,116.97 = 4,115,052.86 : x - Step 2: Convert to fraction form
6,321,197.18/8,721,116.97 = 4,115,052.86/x - Step 3: Cross multiply
6,321,197.18x = 8,721,116.97 × 4,115,052.86 - Step 4: Simplify right side
6,321,197.18x = 35,887,857,329,793.04 - Step 5: Solve for x
x = 35,887,857,329,793.04/6,321,197.18 - Step 6: Final answer
x = 5,677,382.99
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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.