Finding the Fourth Proportional to 7,782,228.22, 11,691,057.09 and 5,629,892.17
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Solution
The fourth proportional to 7,782,228.22, 11,691,057.09 and 5,629,892.17 is: 8,457,653.63
Step by Step Solution
- Step 1: Write the proportion equation
7,782,228.22 : 11,691,057.09 = 5,629,892.17 : x - Step 2: Convert to fraction form
7,782,228.22/11,691,057.09 = 5,629,892.17/x - Step 3: Cross multiply
7,782,228.22x = 11,691,057.09 × 5,629,892.17 - Step 4: Simplify right side
7,782,228.22x = 65,819,390,770,013.98 - Step 5: Solve for x
x = 65,819,390,770,013.98/7,782,228.22 - Step 6: Final answer
x = 8,457,653.63
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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.