Finding the Fourth Proportional to 151,397,422.74, 208,928,629.74 and 81,782,804.58
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Solution
The fourth proportional to 151,397,422.74, 208,928,629.74 and 81,782,804.58 is: 112,860,370.99
Step by Step Solution
- Step 1: Write the proportion equation
151,397,422.74 : 208,928,629.74 = 81,782,804.58 : x - Step 2: Convert to fraction form
151,397,422.74/208,928,629.74 = 81,782,804.58/x - Step 3: Cross multiply
151,397,422.74x = 208,928,629.74 × 81,782,804.58 - Step 4: Simplify right side
151,397,422.74x = 17,086,769,297,193,596 - Step 5: Solve for x
x = 17,086,769,297,193,596/151,397,422.74 - Step 6: Final answer
x = 112,860,370.99
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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.