Finding the Fourth Proportional to 5,649,946.40, 8,471,809.20 and 1,861,479.20
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Solution
The fourth proportional to 5,649,946.40, 8,471,809.20 and 1,861,479.20 is: 2,791,194.02
Step by Step Solution
- Step 1: Write the proportion equation
5,649,946.40 : 8,471,809.20 = 1,861,479.20 : x - Step 2: Convert to fraction form
5,649,946.40/8,471,809.20 = 1,861,479.20/x - Step 3: Cross multiply
5,649,946.40x = 8,471,809.20 × 1,861,479.20 - Step 4: Simplify right side
5,649,946.40x = 15,770,096,612,168.64 - Step 5: Solve for x
x = 15,770,096,612,168.64/5,649,946.40 - Step 6: Final answer
x = 2,791,194.02
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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.