Finding the Fourth Proportional to 2,821,693,458.45, 3,890,322,235.98 and 2,311,175,453.17
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Solution
The fourth proportional to 2,821,693,458.45, 3,890,322,235.98 and 2,311,175,453.17 is: 3,186,461,388.92
Step by Step Solution
- Step 1: Write the proportion equation
2,821,693,458.45 : 3,890,322,235.98 = 2,311,175,453.17 : x - Step 2: Convert to fraction form
2,821,693,458.45/3,890,322,235.98 = 2,311,175,453.17/x - Step 3: Cross multiply
2,821,693,458.45x = 3,890,322,235.98 × 2,311,175,453.17 - Step 4: Simplify right side
2,821,693,458.45x = 8,991,217,256,718,404,608 - Step 5: Solve for x
x = 8,991,217,256,718,404,608/2,821,693,458.45 - Step 6: Final answer
x = 3,186,461,388.92
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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.