Finding the Fourth Proportional to 11,135,357.28, 15,366,537.12 and 6,488,846.40
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Solution
The fourth proportional to 11,135,357.28, 15,366,537.12 and 6,488,846.40 is: 8,954,458.90
Step by Step Solution
- Step 1: Write the proportion equation
11,135,357.28 : 15,366,537.12 = 6,488,846.40 : x - Step 2: Convert to fraction form
11,135,357.28/15,366,537.12 = 6,488,846.40/x - Step 3: Cross multiply
11,135,357.28x = 15,366,537.12 × 6,488,846.40 - Step 4: Simplify right side
11,135,357.28x = 99,711,099,071,578.38 - Step 5: Solve for x
x = 99,711,099,071,578.38/11,135,357.28 - Step 6: Final answer
x = 8,954,458.90
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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.