Finding the Fourth Proportional to 7,639,112.52, 10,542,063.20 and 4,201,410.96
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Solution
The fourth proportional to 7,639,112.52, 10,542,063.20 and 4,201,410.96 is: 5,797,995.48
Step by Step Solution
- Step 1: Write the proportion equation
7,639,112.52 : 10,542,063.20 = 4,201,410.96 : x - Step 2: Convert to fraction form
7,639,112.52/10,542,063.20 = 4,201,410.96/x - Step 3: Cross multiply
7,639,112.52x = 10,542,063.20 × 4,201,410.96 - Step 4: Simplify right side
7,639,112.52x = 44,291,539,848,485.62 - Step 5: Solve for x
x = 44,291,539,848,485.62/7,639,112.52 - Step 6: Final answer
x = 5,797,995.48
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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.