Finding the Fourth Proportional to 11,381,747.67, 15,705,857.97 and 6,419,914.83
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Solution
The fourth proportional to 11,381,747.67, 15,705,857.97 and 6,419,914.83 is: 8,858,944.46
Step by Step Solution
- Step 1: Write the proportion equation
11,381,747.67 : 15,705,857.97 = 6,419,914.83 : x - Step 2: Convert to fraction form
11,381,747.67/15,705,857.97 = 6,419,914.83/x - Step 3: Cross multiply
11,381,747.67x = 15,705,857.97 × 6,419,914.83 - Step 4: Simplify right side
11,381,747.67x = 100,830,270,499,476.70 - Step 5: Solve for x
x = 100,830,270,499,476.70/11,381,747.67 - Step 6: Final answer
x = 8,858,944.46
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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.