Finding the Fourth Proportional to 136,274,660.49, 188,058,074.80 and 74,394,999.05
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Solution
The fourth proportional to 136,274,660.49, 188,058,074.80 and 74,394,999.05 is: 102,664,576.43
Step by Step Solution
- Step 1: Write the proportion equation
136,274,660.49 : 188,058,074.80 = 74,394,999.05 : x - Step 2: Convert to fraction form
136,274,660.49/188,058,074.80 = 74,394,999.05/x - Step 3: Cross multiply
136,274,660.49x = 188,058,074.80 × 74,394,999.05 - Step 4: Simplify right side
136,274,660.49x = 13,990,580,296,899,176 - Step 5: Solve for x
x = 13,990,580,296,899,176/136,274,660.49 - Step 6: Final answer
x = 102,664,576.43
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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.