Finding the Fourth Proportional to 290,414,816.80, 435,699,207.60 and 126,582,272.80
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Solution
The fourth proportional to 290,414,816.80, 435,699,207.60 and 126,582,272.80 is: 189,906,963.30
Step by Step Solution
- Step 1: Write the proportion equation
290,414,816.80 : 435,699,207.60 = 126,582,272.80 : x - Step 2: Convert to fraction form
290,414,816.80/435,699,207.60 = 126,582,272.80/x - Step 3: Cross multiply
290,414,816.80x = 435,699,207.60 × 126,582,272.80 - Step 4: Simplify right side
290,414,816.80x = 55,151,795,955,167,032 - Step 5: Solve for x
x = 55,151,795,955,167,032/290,414,816.80 - Step 6: Final answer
x = 189,906,963.30
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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.