Finding the Fourth Proportional to 8,428,608.88, 12,641,630.20 and 2,748,824.08
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Solution
The fourth proportional to 8,428,608.88, 12,641,630.20 and 2,748,824.08 is: 4,122,817.66
Step by Step Solution
- Step 1: Write the proportion equation
8,428,608.88 : 12,641,630.20 = 2,748,824.08 : x - Step 2: Convert to fraction form
8,428,608.88/12,641,630.20 = 2,748,824.08/x - Step 3: Cross multiply
8,428,608.88x = 12,641,630.20 × 2,748,824.08 - Step 4: Simplify right side
8,428,608.88x = 34,749,617,504,215.21 - Step 5: Solve for x
x = 34,749,617,504,215.21/8,428,608.88 - Step 6: Final answer
x = 4,122,817.66
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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.