Finding the Fourth Proportional to 99,858,858.26, 137,793,287.88 and 55,198,797.10
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Solution
The fourth proportional to 99,858,858.26, 137,793,287.88 and 55,198,797.10 is: 76,167,741.87
Step by Step Solution
- Step 1: Write the proportion equation
99,858,858.26 : 137,793,287.88 = 55,198,797.10 : x - Step 2: Convert to fraction form
99,858,858.26/137,793,287.88 = 55,198,797.10/x - Step 3: Cross multiply
99,858,858.26x = 137,793,287.88 × 55,198,797.10 - Step 4: Simplify right side
99,858,858.26x = 7,606,023,739,569,328 - Step 5: Solve for x
x = 7,606,023,739,569,328/99,858,858.26 - Step 6: Final answer
x = 76,167,741.87
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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.