Finding the Fourth Proportional to 11,728,885.38, 16,176,265.56 and 8,255,721.60
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Solution
The fourth proportional to 11,728,885.38, 16,176,265.56 and 8,255,721.60 is: 11,386,141.19
Step by Step Solution
- Step 1: Write the proportion equation
11,728,885.38 : 16,176,265.56 = 8,255,721.60 : x - Step 2: Convert to fraction form
11,728,885.38/16,176,265.56 = 8,255,721.60/x - Step 3: Cross multiply
11,728,885.38x = 16,176,265.56 × 8,255,721.60 - Step 4: Simplify right side
11,728,885.38x = 133,546,744,991,028.09 - Step 5: Solve for x
x = 133,546,744,991,028.09/11,728,885.38 - Step 6: Final answer
x = 11,386,141.19
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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.