Finding the Fourth Proportional to 5,384,673.80, 8,077,010.70 and 2,192,091.20
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Solution
The fourth proportional to 5,384,673.80, 8,077,010.70 and 2,192,091.20 is: 3,288,136.80
Step by Step Solution
- Step 1: Write the proportion equation
5,384,673.80 : 8,077,010.70 = 2,192,091.20 : x - Step 2: Convert to fraction form
5,384,673.80/8,077,010.70 = 2,192,091.20/x - Step 3: Cross multiply
5,384,673.80x = 8,077,010.70 × 2,192,091.20 - Step 4: Simplify right side
5,384,673.80x = 17,705,544,077,775.84 - Step 5: Solve for x
x = 17,705,544,077,775.84/5,384,673.80 - Step 6: Final answer
x = 3,288,136.80
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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.