Finding the Fourth Proportional to 4,138,361.64, 5,707,703.74 and 2,688,524.21
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Solution
The fourth proportional to 4,138,361.64, 5,707,703.74 and 2,688,524.21 is: 3,708,061.55
Step by Step Solution
- Step 1: Write the proportion equation
4,138,361.64 : 5,707,703.74 = 2,688,524.21 : x - Step 2: Convert to fraction form
4,138,361.64/5,707,703.74 = 2,688,524.21/x - Step 3: Cross multiply
4,138,361.64x = 5,707,703.74 × 2,688,524.21 - Step 4: Simplify right side
4,138,361.64x = 15,345,299,688,497.54 - Step 5: Solve for x
x = 15,345,299,688,497.54/4,138,361.64 - Step 6: Final answer
x = 3,708,061.55
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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.