Finding the Fourth Proportional to 12,280,213.92, 18,420,364.08 and 3,760,512.96
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Solution
The fourth proportional to 12,280,213.92, 18,420,364.08 and 3,760,512.96 is: 5,640,782.67
Step by Step Solution
- Step 1: Write the proportion equation
12,280,213.92 : 18,420,364.08 = 3,760,512.96 : x - Step 2: Convert to fraction form
12,280,213.92/18,420,364.08 = 3,760,512.96/x - Step 3: Cross multiply
12,280,213.92x = 18,420,364.08 × 3,760,512.96 - Step 4: Simplify right side
12,280,213.92x = 69,270,017,850,758.47 - Step 5: Solve for x
x = 69,270,017,850,758.47/12,280,213.92 - Step 6: Final answer
x = 5,640,782.67
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1.5x scale
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.