Finding the Fourth Proportional to 3,931,528.70, 5,425,684.18 and 2,212,760.54
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Solution
The fourth proportional to 3,931,528.70, 5,425,684.18 and 2,212,760.54 is: 3,053,707.80
Step by Step Solution
- Step 1: Write the proportion equation
3,931,528.70 : 5,425,684.18 = 2,212,760.54 : x - Step 2: Convert to fraction form
3,931,528.70/5,425,684.18 = 2,212,760.54/x - Step 3: Cross multiply
3,931,528.70x = 5,425,684.18 × 2,212,760.54 - Step 4: Simplify right side
3,931,528.70x = 12,005,739,831,378.24 - Step 5: Solve for x
x = 12,005,739,831,378.24/3,931,528.70 - Step 6: Final answer
x = 3,053,707.80
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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.