Finding the Fourth Proportional to 8,508,428.12, 11,738,284.79 and 5,239,567.76
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Solution
The fourth proportional to 8,508,428.12, 11,738,284.79 and 5,239,567.76 is: 7,228,542.99
Step by Step Solution
- Step 1: Write the proportion equation
8,508,428.12 : 11,738,284.79 = 5,239,567.76 : x - Step 2: Convert to fraction form
8,508,428.12/11,738,284.79 = 5,239,567.76/x - Step 3: Cross multiply
8,508,428.12x = 11,738,284.79 × 5,239,567.76 - Step 4: Simplify right side
8,508,428.12x = 61,503,538,458,493.11 - Step 5: Solve for x
x = 61,503,538,458,493.11/8,508,428.12 - Step 6: Final answer
x = 7,228,542.99
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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.