Finding the Fourth Proportional to 20,199,183.57, 27,875,050.36 and 11,497,915.66
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Solution
The fourth proportional to 20,199,183.57, 27,875,050.36 and 11,497,915.66 is: 15,867,224.38
Step by Step Solution
- Step 1: Write the proportion equation
20,199,183.57 : 27,875,050.36 = 11,497,915.66 : x - Step 2: Convert to fraction form
20,199,183.57/27,875,050.36 = 11,497,915.66/x - Step 3: Cross multiply
20,199,183.57x = 27,875,050.36 × 11,497,915.66 - Step 4: Simplify right side
20,199,183.57x = 320,504,978,011,366 - Step 5: Solve for x
x = 320,504,978,011,366/20,199,183.57 - Step 6: Final answer
x = 15,867,224.38
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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.