Finding the Fourth Proportional to 4,440,616.48, 6,128,199.12 and 2,721,404.80
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Solution
The fourth proportional to 4,440,616.48, 6,128,199.12 and 2,721,404.80 is: 3,755,629.56
Step by Step Solution
- Step 1: Write the proportion equation
4,440,616.48 : 6,128,199.12 = 2,721,404.80 : x - Step 2: Convert to fraction form
4,440,616.48/6,128,199.12 = 2,721,404.80/x - Step 3: Cross multiply
4,440,616.48x = 6,128,199.12 × 2,721,404.80 - Step 4: Simplify right side
4,440,616.48x = 16,677,310,500,523.78 - Step 5: Solve for x
x = 16,677,310,500,523.78/4,440,616.48 - Step 6: Final answer
x = 3,755,629.56
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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.