Finding the Fourth Proportional to 5,180,538,084.12, 7,149,163,949.97 and 2,801,675,971.26
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Solution
The fourth proportional to 5,180,538,084.12, 7,149,163,949.97 and 2,801,675,971.26 is: 3,866,324,410.32
Step by Step Solution
- Step 1: Write the proportion equation
5,180,538,084.12 : 7,149,163,949.97 = 2,801,675,971.26 : x - Step 2: Convert to fraction form
5,180,538,084.12/7,149,163,949.97 = 2,801,675,971.26/x - Step 3: Cross multiply
5,180,538,084.12x = 7,149,163,949.97 × 2,801,675,971.26 - Step 4: Simplify right side
5,180,538,084.12x = 20,029,640,853,229,178,880 - Step 5: Solve for x
x = 20,029,640,853,229,178,880/5,180,538,084.12 - Step 6: Final answer
x = 3,866,324,410.32
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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.