Finding the Fourth Proportional to 18,220,059.48, 25,143,687.60 and 9,960,157.92
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Solution
The fourth proportional to 18,220,059.48, 25,143,687.60 and 9,960,157.92 is: 13,745,020.95
Step by Step Solution
- Step 1: Write the proportion equation
18,220,059.48 : 25,143,687.60 = 9,960,157.92 : x - Step 2: Convert to fraction form
18,220,059.48/25,143,687.60 = 9,960,157.92/x - Step 3: Cross multiply
18,220,059.48x = 25,143,687.60 × 9,960,157.92 - Step 4: Simplify right side
18,220,059.48x = 250,435,099,187,145.81 - Step 5: Solve for x
x = 250,435,099,187,145.81/18,220,059.48 - Step 6: Final answer
x = 13,745,020.95
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1.5x scale
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.