Finding the Fourth Proportional to 5,148,759.24, 7,105,336.74 and 2,857,133.16
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Solution
The fourth proportional to 5,148,759.24, 7,105,336.74 and 2,857,133.16 is: 3,942,870.95
Step by Step Solution
- Step 1: Write the proportion equation
5,148,759.24 : 7,105,336.74 = 2,857,133.16 : x - Step 2: Convert to fraction form
5,148,759.24/7,105,336.74 = 2,857,133.16/x - Step 3: Cross multiply
5,148,759.24x = 7,105,336.74 × 2,857,133.16 - Step 4: Simplify right side
5,148,759.24x = 20,300,893,212,820.30 - Step 5: Solve for x
x = 20,300,893,212,820.30/5,148,759.24 - Step 6: Final answer
x = 3,942,870.95
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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.