Finding the Fourth Proportional to 5,286,102.24, 7,294,236.09 and 2,931,240.75
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Solution
The fourth proportional to 5,286,102.24, 7,294,236.09 and 2,931,240.75 is: 4,044,787.84
Step by Step Solution
- Step 1: Write the proportion equation
5,286,102.24 : 7,294,236.09 = 2,931,240.75 : x - Step 2: Convert to fraction form
5,286,102.24/7,294,236.09 = 2,931,240.75/x - Step 3: Cross multiply
5,286,102.24x = 7,294,236.09 × 2,931,240.75 - Step 4: Simplify right side
5,286,102.24x = 21,381,162,067,128.67 - Step 5: Solve for x
x = 21,381,162,067,128.67/5,286,102.24 - Step 6: Final answer
x = 4,044,787.84
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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.