Finding the Fourth Proportional to 7,642,617.62, 10,546,896.02 and 4,157,976.20
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Solution
The fourth proportional to 7,642,617.62, 10,546,896.02 and 4,157,976.20 is: 5,738,052.70
Step by Step Solution
- Step 1: Write the proportion equation
7,642,617.62 : 10,546,896.02 = 4,157,976.20 : x - Step 2: Convert to fraction form
7,642,617.62/10,546,896.02 = 4,157,976.20/x - Step 3: Cross multiply
7,642,617.62x = 10,546,896.02 × 4,157,976.20 - Step 4: Simplify right side
7,642,617.62x = 43,853,742,635,034.73 - Step 5: Solve for x
x = 43,853,742,635,034.73/7,642,617.62 - Step 6: Final answer
x = 5,738,052.70
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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.