Finding the Fourth Proportional to 7,680,571.84, 11,508,234.40 and 2,629,126.72
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Solution
The fourth proportional to 7,680,571.84, 11,508,234.40 and 2,629,126.72 is: 3,939,368.99
Step by Step Solution
- Step 1: Write the proportion equation
7,680,571.84 : 11,508,234.40 = 2,629,126.72 : x - Step 2: Convert to fraction form
7,680,571.84/11,508,234.40 = 2,629,126.72/x - Step 3: Cross multiply
7,680,571.84x = 11,508,234.40 × 2,629,126.72 - Step 4: Simplify right side
7,680,571.84x = 30,256,606,561,063.17 - Step 5: Solve for x
x = 30,256,606,561,063.17/7,680,571.84 - Step 6: Final answer
x = 3,939,368.99
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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.