Finding the Fourth Proportional to 122,313,777,571.29, 168,798,244,586.52 and 68,120,317,516.63
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Solution
The fourth proportional to 122,313,777,571.29, 168,798,244,586.52 and 68,120,317,516.63 is: 94,008,951,777.99
Step by Step Solution
- Step 1: Write the proportion equation
122,313,777,571.29 : 168,798,244,586.52 = 68,120,317,516.63 : x - Step 2: Convert to fraction form
122,313,777,571.29/168,798,244,586.52 = 68,120,317,516.63/x - Step 3: Cross multiply
122,313,777,571.29x = 168,798,244,586.52 × 68,120,317,516.63 - Step 4: Simplify right side
122,313,777,571.29x = 11,498,590,017,483,511,431,168 - Step 5: Solve for x
x = 11,498,590,017,483,511,431,168/122,313,777,571.29 - Step 6: Final answer
x = 94,008,951,777.99
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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.