Finding the Fourth Proportional to 5,279,453,044.12, 7,286,269,790.94 and 3,136,068,172.28
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Solution
The fourth proportional to 5,279,453,044.12, 7,286,269,790.94 and 3,136,068,172.28 is: 4,328,145,092.88
Step by Step Solution
- Step 1: Write the proportion equation
5,279,453,044.12 : 7,286,269,790.94 = 3,136,068,172.28 : x - Step 2: Convert to fraction form
5,279,453,044.12/7,286,269,790.94 = 3,136,068,172.28/x - Step 3: Cross multiply
5,279,453,044.12x = 7,286,269,790.94 × 3,136,068,172.28 - Step 4: Simplify right side
5,279,453,044.12x = 22,850,238,786,022,555,648 - Step 5: Solve for x
x = 22,850,238,786,022,555,648/5,279,453,044.12 - Step 6: Final answer
x = 4,328,145,092.88
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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.