Finding the Fourth Proportional to 438,859,537.03, 658,188,571.18 and 261,646,821.93
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Solution
The fourth proportional to 438,859,537.03, 658,188,571.18 and 261,646,821.93 is: 392,410,175.35
Step by Step Solution
- Step 1: Write the proportion equation
438,859,537.03 : 658,188,571.18 = 261,646,821.93 : x - Step 2: Convert to fraction form
438,859,537.03/658,188,571.18 = 261,646,821.93/x - Step 3: Cross multiply
438,859,537.03x = 658,188,571.18 × 261,646,821.93 - Step 4: Simplify right side
438,859,537.03x = 172,212,947,879,894,592 - Step 5: Solve for x
x = 172,212,947,879,894,592/438,859,537.03 - Step 6: Final answer
x = 392,410,175.35
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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.