Finding the Fourth Proportional to 3,866,220.42, 5,335,236.60 and 2,147,451.18
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Solution
The fourth proportional to 3,866,220.42, 5,335,236.60 and 2,147,451.18 is: 2,963,400.66
Step by Step Solution
- Step 1: Write the proportion equation
3,866,220.42 : 5,335,236.60 = 2,147,451.18 : x - Step 2: Convert to fraction form
3,866,220.42/5,335,236.60 = 2,147,451.18/x - Step 3: Cross multiply
3,866,220.42x = 5,335,236.60 × 2,147,451.18 - Step 4: Simplify right side
3,866,220.42x = 11,457,160,132,249.19 - Step 5: Solve for x
x = 11,457,160,132,249.19/3,866,220.42 - Step 6: Final answer
x = 2,963,400.66
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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.