Finding the Fourth Proportional to 4,855,137.60, 7,276,485.60 and 4,320,148.80
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Solution
The fourth proportional to 4,855,137.60, 7,276,485.60 and 4,320,148.80 is: 6,474,687.87
Step by Step Solution
- Step 1: Write the proportion equation
4,855,137.60 : 7,276,485.60 = 4,320,148.80 : x - Step 2: Convert to fraction form
4,855,137.60/7,276,485.60 = 4,320,148.80/x - Step 3: Cross multiply
4,855,137.60x = 7,276,485.60 × 4,320,148.80 - Step 4: Simplify right side
4,855,137.60x = 31,435,500,533,057.28 - Step 5: Solve for x
x = 31,435,500,533,057.28/4,855,137.60 - Step 6: Final answer
x = 6,474,687.87
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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.