Finding the Fourth Proportional to 874,802,247.40, 1,312,392,327.90 and 261,448,474.60
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Solution
The fourth proportional to 874,802,247.40, 1,312,392,327.90 and 261,448,474.60 is: 392,229,184.63
Step by Step Solution
- Step 1: Write the proportion equation
874,802,247.40 : 1,312,392,327.90 = 261,448,474.60 : x - Step 2: Convert to fraction form
874,802,247.40/1,312,392,327.90 = 261,448,474.60/x - Step 3: Cross multiply
874,802,247.40x = 1,312,392,327.90 × 261,448,474.60 - Step 4: Simplify right side
874,802,247.40x = 343,122,972,206,198,016 - Step 5: Solve for x
x = 343,122,972,206,198,016/874,802,247.40 - Step 6: Final answer
x = 392,229,184.63
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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.