Finding the Fourth Proportional to 116,503,523.39, 160,835,310.09 and 85,106,321.21
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Solution
The fourth proportional to 116,503,523.39, 160,835,310.09 and 85,106,321.21 is: 117,490,880.65
Step by Step Solution
- Step 1: Write the proportion equation
116,503,523.39 : 160,835,310.09 = 85,106,321.21 : x - Step 2: Convert to fraction form
116,503,523.39/160,835,310.09 = 85,106,321.21/x - Step 3: Cross multiply
116,503,523.39x = 160,835,310.09 × 85,106,321.21 - Step 4: Simplify right side
116,503,523.39x = 13,688,101,561,625,318 - Step 5: Solve for x
x = 13,688,101,561,625,318/116,503,523.39 - Step 6: Final answer
x = 117,490,880.65
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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.