Finding the Fourth Proportional to 397,436,640.57, 596,243,874.77 and 121,109,481.26
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Solution
The fourth proportional to 397,436,640.57, 596,243,874.77 and 121,109,481.26 is: 181,691,316.32
Step by Step Solution
- Step 1: Write the proportion equation
397,436,640.57 : 596,243,874.77 = 121,109,481.26 : x - Step 2: Convert to fraction form
397,436,640.57/596,243,874.77 = 121,109,481.26/x - Step 3: Cross multiply
397,436,640.57x = 596,243,874.77 × 121,109,481.26 - Step 4: Simplify right side
397,436,640.57x = 72,210,786,377,847,104 - Step 5: Solve for x
x = 72,210,786,377,847,104/397,436,640.57 - Step 6: Final answer
x = 181,691,316.32
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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.