Finding the Fourth Proportional to 11,169,281.21, 15,409,175.72 and 6,458,806.26
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Solution
The fourth proportional to 11,169,281.21, 15,409,175.72 and 6,458,806.26 is: 8,910,589.57
Step by Step Solution
- Step 1: Write the proportion equation
11,169,281.21 : 15,409,175.72 = 6,458,806.26 : x - Step 2: Convert to fraction form
11,169,281.21/15,409,175.72 = 6,458,806.26/x - Step 3: Cross multiply
11,169,281.21x = 15,409,175.72 × 6,458,806.26 - Step 4: Simplify right side
11,169,281.21x = 99,524,880,569,481.97 - Step 5: Solve for x
x = 99,524,880,569,481.97/11,169,281.21 - Step 6: Final answer
x = 8,910,589.57
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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.