Finding the Fourth Proportional to 3,836,785.16, 5,294,745.06 and 2,117,890.64
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Solution
The fourth proportional to 3,836,785.16, 5,294,745.06 and 2,117,890.64 is: 2,922,678.89
Step by Step Solution
- Step 1: Write the proportion equation
3,836,785.16 : 5,294,745.06 = 2,117,890.64 : x - Step 2: Convert to fraction form
3,836,785.16/5,294,745.06 = 2,117,890.64/x - Step 3: Cross multiply
3,836,785.16x = 5,294,745.06 × 2,117,890.64 - Step 4: Simplify right side
3,836,785.16x = 11,213,691,003,760.24 - Step 5: Solve for x
x = 11,213,691,003,760.24/3,836,785.16 - Step 6: Final answer
x = 2,922,678.89
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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.