Finding the Fourth Proportional to 8,220,361.74, 11,344,120.74 and 4,549,531.44
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Solution
The fourth proportional to 8,220,361.74, 11,344,120.74 and 4,549,531.44 is: 6,278,365.31
Step by Step Solution
- Step 1: Write the proportion equation
8,220,361.74 : 11,344,120.74 = 4,549,531.44 : x - Step 2: Convert to fraction form
8,220,361.74/11,344,120.74 = 4,549,531.44/x - Step 3: Cross multiply
8,220,361.74x = 11,344,120.74 × 4,549,531.44 - Step 4: Simplify right side
8,220,361.74x = 51,610,433,965,786.07 - Step 5: Solve for x
x = 51,610,433,965,786.07/8,220,361.74 - Step 6: Final answer
x = 6,278,365.31
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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.