Finding the Fourth Proportional to 853,434,232.20, 1,281,107,942.10 and 660,202,284.60
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Solution
The fourth proportional to 853,434,232.20, 1,281,107,942.10 and 660,202,284.60 is: 991,043,431.68
Step by Step Solution
- Step 1: Write the proportion equation
853,434,232.20 : 1,281,107,942.10 = 660,202,284.60 : x - Step 2: Convert to fraction form
853,434,232.20/1,281,107,942.10 = 660,202,284.60/x - Step 3: Cross multiply
853,434,232.20x = 1,281,107,942.10 × 660,202,284.60 - Step 4: Simplify right side
853,434,232.20x = 845,790,390,193,624,448 - Step 5: Solve for x
x = 845,790,390,193,624,448/853,434,232.20 - Step 6: Final answer
x = 991,043,431.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.