Finding the Fourth Proportional to 7,478,272.84, 11,222,450.16 and 2,620,622.92
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Solution
The fourth proportional to 7,478,272.84, 11,222,450.16 and 2,620,622.92 is: 3,932,700.87
Step by Step Solution
- Step 1: Write the proportion equation
7,478,272.84 : 11,222,450.16 = 2,620,622.92 : x - Step 2: Convert to fraction form
7,478,272.84/11,222,450.16 = 2,620,622.92/x - Step 3: Cross multiply
7,478,272.84x = 11,222,450.16 × 2,620,622.92 - Step 4: Simplify right side
7,478,272.84x = 29,409,810,107,853.67 - Step 5: Solve for x
x = 29,409,810,107,853.67/7,478,272.84 - Step 6: Final answer
x = 3,932,700.87
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.