Finding the Fourth Proportional to 3,883,981.20, 5,828,596.20 and 2,178,121.20
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Solution
The fourth proportional to 3,883,981.20, 5,828,596.20 and 2,178,121.20 is: 3,268,653.55
Step by Step Solution
- Step 1: Write the proportion equation
3,883,981.20 : 5,828,596.20 = 2,178,121.20 : x - Step 2: Convert to fraction form
3,883,981.20/5,828,596.20 = 2,178,121.20/x - Step 3: Cross multiply
3,883,981.20x = 5,828,596.20 × 2,178,121.20 - Step 4: Simplify right side
3,883,981.20x = 12,695,388,949,459.44 - Step 5: Solve for x
x = 12,695,388,949,459.44/3,883,981.20 - Step 6: Final answer
x = 3,268,653.55
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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.