Finding the Fourth Proportional to 18,651,924.48, 27,977,936.64 and 5,188,753.92
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Solution
The fourth proportional to 18,651,924.48, 27,977,936.64 and 5,188,753.92 is: 7,783,144.77
Step by Step Solution
- Step 1: Write the proportion equation
18,651,924.48 : 27,977,936.64 = 5,188,753.92 : x - Step 2: Convert to fraction form
18,651,924.48/27,977,936.64 = 5,188,753.92/x - Step 3: Cross multiply
18,651,924.48x = 27,977,936.64 × 5,188,753.92 - Step 4: Simplify right side
18,651,924.48x = 145,170,628,414,311.62 - Step 5: Solve for x
x = 145,170,628,414,311.62/18,651,924.48 - Step 6: Final answer
x = 7,783,144.77
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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.