Finding the Fourth Proportional to 144,324,910.05, 199,197,310.37 and 85,620,160.05
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Solution
The fourth proportional to 144,324,910.05, 199,197,310.37 and 85,620,160.05 is: 118,172,986.14
Step by Step Solution
- Step 1: Write the proportion equation
144,324,910.05 : 199,197,310.37 = 85,620,160.05 : x - Step 2: Convert to fraction form
144,324,910.05/199,197,310.37 = 85,620,160.05/x - Step 3: Cross multiply
144,324,910.05x = 199,197,310.37 × 85,620,160.05 - Step 4: Simplify right side
144,324,910.05x = 17,055,305,594,980,824 - Step 5: Solve for x
x = 17,055,305,594,980,824/144,324,910.05 - Step 6: Final answer
x = 118,172,986.14
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1.5x scale
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.