Finding the Fourth Proportional to 18,361,510.20, 27,543,302.10 and 5,582,431.80
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Solution
The fourth proportional to 18,361,510.20, 27,543,302.10 and 5,582,431.80 is: 8,373,962.92
Step by Step Solution
- Step 1: Write the proportion equation
18,361,510.20 : 27,543,302.10 = 5,582,431.80 : x - Step 2: Convert to fraction form
18,361,510.20/27,543,302.10 = 5,582,431.80/x - Step 3: Cross multiply
18,361,510.20x = 27,543,302.10 × 5,582,431.80 - Step 4: Simplify right side
18,361,510.20x = 153,758,605,520,046.78 - Step 5: Solve for x
x = 153,758,605,520,046.78/18,361,510.20 - Step 6: Final answer
x = 8,373,962.92
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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.