Finding the Fourth Proportional to 3,990,725.72, 5,507,122.62 and 2,248,398.68
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Solution
The fourth proportional to 3,990,725.72, 5,507,122.62 and 2,248,398.68 is: 3,102,745.74
Step by Step Solution
- Step 1: Write the proportion equation
3,990,725.72 : 5,507,122.62 = 2,248,398.68 : x - Step 2: Convert to fraction form
3,990,725.72/5,507,122.62 = 2,248,398.68/x - Step 3: Cross multiply
3,990,725.72x = 5,507,122.62 × 2,248,398.68 - Step 4: Simplify right side
3,990,725.72x = 12,382,207,229,406.14 - Step 5: Solve for x
x = 12,382,207,229,406.14/3,990,725.72 - Step 6: Final answer
x = 3,102,745.74
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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.