Finding the Fourth Proportional to 201,795,203.80, 278,477,378.69 and 108,975,703.44
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Solution
The fourth proportional to 201,795,203.80, 278,477,378.69 and 108,975,703.44 is: 150,386,469.37
Step by Step Solution
- Step 1: Write the proportion equation
201,795,203.80 : 278,477,378.69 = 108,975,703.44 : x - Step 2: Convert to fraction form
201,795,203.80/278,477,378.69 = 108,975,703.44/x - Step 3: Cross multiply
201,795,203.80x = 278,477,378.69 × 108,975,703.44 - Step 4: Simplify right side
201,795,203.80x = 30,347,268,234,870,016 - Step 5: Solve for x
x = 30,347,268,234,870,016/201,795,203.80 - Step 6: Final answer
x = 150,386,469.37
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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.