Finding the Fourth Proportional to 3,990,724.72, 5,507,121.24 and 2,248,397.68
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Solution
The fourth proportional to 3,990,724.72, 5,507,121.24 and 2,248,397.68 is: 3,102,744.36
Step by Step Solution
- Step 1: Write the proportion equation
3,990,724.72 : 5,507,121.24 = 2,248,397.68 : x - Step 2: Convert to fraction form
3,990,724.72/5,507,121.24 = 2,248,397.68/x - Step 3: Cross multiply
3,990,724.72x = 5,507,121.24 × 2,248,397.68 - Step 4: Simplify right side
3,990,724.72x = 12,382,198,619,494.72 - Step 5: Solve for x
x = 12,382,198,619,494.72/3,990,724.72 - Step 6: Final answer
x = 3,102,744.36
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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.