Finding the Fourth Proportional to 416,992,408.02, 575,449,593.57 and 231,352,980.84
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Solution
The fourth proportional to 416,992,408.02, 575,449,593.57 and 231,352,980.84 is: 319,267,152.67
Step by Step Solution
- Step 1: Write the proportion equation
416,992,408.02 : 575,449,593.57 = 231,352,980.84 : x - Step 2: Convert to fraction form
416,992,408.02/575,449,593.57 = 231,352,980.84/x - Step 3: Cross multiply
416,992,408.02x = 575,449,593.57 × 231,352,980.84 - Step 4: Simplify right side
416,992,408.02x = 133,131,978,795,586,016 - Step 5: Solve for x
x = 133,131,978,795,586,016/416,992,408.02 - Step 6: Final answer
x = 319,267,152.67
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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.