Finding the Fourth Proportional to 3,929,350.42, 5,419,580.62 and 3,469,653.96
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Solution
The fourth proportional to 3,929,350.42, 5,419,580.62 and 3,469,653.96 is: 4,785,541.46
Step by Step Solution
- Step 1: Write the proportion equation
3,929,350.42 : 5,419,580.62 = 3,469,653.96 : x - Step 2: Convert to fraction form
3,929,350.42/5,419,580.62 = 3,469,653.96/x - Step 3: Cross multiply
3,929,350.42x = 5,419,580.62 × 3,469,653.96 - Step 4: Simplify right side
3,929,350.42x = 18,804,069,359,722.25 - Step 5: Solve for x
x = 18,804,069,359,722.25/3,929,350.42 - Step 6: Final answer
x = 4,785,541.46
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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.