Finding the Fourth Proportional to 3,864,524.48, 5,324,271.18 and 2,990,353.58
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Solution
The fourth proportional to 3,864,524.48, 5,324,271.18 and 2,990,353.58 is: 4,119,899.74
Step by Step Solution
- Step 1: Write the proportion equation
3,864,524.48 : 5,324,271.18 = 2,990,353.58 : x - Step 2: Convert to fraction form
3,864,524.48/5,324,271.18 = 2,990,353.58/x - Step 3: Cross multiply
3,864,524.48x = 5,324,271.18 × 2,990,353.58 - Step 4: Simplify right side
3,864,524.48x = 15,921,453,384,003.82 - Step 5: Solve for x
x = 15,921,453,384,003.82/3,864,524.48 - Step 6: Final answer
x = 4,119,899.74
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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.