Finding the Fourth Proportional to 18,058,036.64, 27,086,529.84 and 5,278,841.60
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Solution
The fourth proportional to 18,058,036.64, 27,086,529.84 and 5,278,841.60 is: 7,918,108.89
Step by Step Solution
- Step 1: Write the proportion equation
18,058,036.64 : 27,086,529.84 = 5,278,841.60 : x - Step 2: Convert to fraction form
18,058,036.64/27,086,529.84 = 5,278,841.60/x - Step 3: Cross multiply
18,058,036.64x = 27,086,529.84 × 5,278,841.60 - Step 4: Simplify right side
18,058,036.64x = 142,985,500,519,033.34 - Step 5: Solve for x
x = 142,985,500,519,033.34/18,058,036.64 - Step 6: Final answer
x = 7,918,108.89
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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.