Finding the Fourth Proportional to 13,183,894.26, 18,193,771.53 and 7,303,910.57
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Solution
The fourth proportional to 13,183,894.26, 18,193,771.53 and 7,303,910.57 is: 10,079,395.17
Step by Step Solution
- Step 1: Write the proportion equation
13,183,894.26 : 18,193,771.53 = 7,303,910.57 : x - Step 2: Convert to fraction form
13,183,894.26/18,193,771.53 = 7,303,910.57/x - Step 3: Cross multiply
13,183,894.26x = 18,193,771.53 × 7,303,910.57 - Step 4: Simplify right side
13,183,894.26x = 132,885,680,095,163.23 - Step 5: Solve for x
x = 132,885,680,095,163.23/13,183,894.26 - Step 6: Final answer
x = 10,079,395.17
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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.