Finding the Fourth Proportional to 4,147,144.11, 5,725,514.07 and 3,686,987.70
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Solution
The fourth proportional to 4,147,144.11, 5,725,514.07 and 3,686,987.70 is: 5,090,225.80
Step by Step Solution
- Step 1: Write the proportion equation
4,147,144.11 : 5,725,514.07 = 3,686,987.70 : x - Step 2: Convert to fraction form
4,147,144.11/5,725,514.07 = 3,686,987.70/x - Step 3: Cross multiply
4,147,144.11x = 5,725,514.07 × 3,686,987.70 - Step 4: Simplify right side
4,147,144.11x = 21,109,899,952,266.94 - Step 5: Solve for x
x = 21,109,899,952,266.94/4,147,144.11 - Step 6: Final answer
x = 5,090,225.80
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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.