Finding the Fourth Proportional to 11,280,919.75, 16,893,782.74 and 10,189,157.05
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Solution
The fourth proportional to 11,280,919.75, 16,893,782.74 and 10,189,157.05 is: 15,258,809.50
Step by Step Solution
- Step 1: Write the proportion equation
11,280,919.75 : 16,893,782.74 = 10,189,157.05 : x - Step 2: Convert to fraction form
11,280,919.75/16,893,782.74 = 10,189,157.05/x - Step 3: Cross multiply
11,280,919.75x = 16,893,782.74 × 10,189,157.05 - Step 4: Simplify right side
11,280,919.75x = 172,133,405,438,731.97 - Step 5: Solve for x
x = 172,133,405,438,731.97/11,280,919.75 - Step 6: Final answer
x = 15,258,809.50
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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.