Finding the Fourth Proportional to 53,221,405.20, 79,832,107.80 and 36,215,293.20
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Solution
The fourth proportional to 53,221,405.20, 79,832,107.80 and 36,215,293.20 is: 54,322,939.80
Step by Step Solution
- Step 1: Write the proportion equation
53,221,405.20 : 79,832,107.80 = 36,215,293.20 : x - Step 2: Convert to fraction form
53,221,405.20/79,832,107.80 = 36,215,293.20/x - Step 3: Cross multiply
53,221,405.20x = 79,832,107.80 × 36,215,293.20 - Step 4: Simplify right side
53,221,405.20x = 2,891,143,190,751,007 - Step 5: Solve for x
x = 2,891,143,190,751,007/53,221,405.20 - Step 6: Final answer
x = 54,322,939.80
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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.