Finding the Fourth Proportional to 12,321,695.97, 18,478,613.46 and 4,232,721.08
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Solution
The fourth proportional to 12,321,695.97, 18,478,613.46 and 4,232,721.08 is: 6,347,731.43
Step by Step Solution
- Step 1: Write the proportion equation
12,321,695.97 : 18,478,613.46 = 4,232,721.08 : x - Step 2: Convert to fraction form
12,321,695.97/18,478,613.46 = 4,232,721.08/x - Step 3: Cross multiply
12,321,695.97x = 18,478,613.46 × 4,232,721.08 - Step 4: Simplify right side
12,321,695.97x = 78,214,816,783,382.97 - Step 5: Solve for x
x = 78,214,816,783,382.97/12,321,695.97 - Step 6: Final answer
x = 6,347,731.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.