Finding the Fourth Proportional to 3,855,130.29, 5,320,065.47 and 2,136,249.44
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Solution
The fourth proportional to 3,855,130.29, 5,320,065.47 and 2,136,249.44 is: 2,948,016.28
Step by Step Solution
- Step 1: Write the proportion equation
3,855,130.29 : 5,320,065.47 = 2,136,249.44 : x - Step 2: Convert to fraction form
3,855,130.29/5,320,065.47 = 2,136,249.44/x - Step 3: Cross multiply
3,855,130.29x = 5,320,065.47 × 2,136,249.44 - Step 4: Simplify right side
3,855,130.29x = 11,364,986,843,769.26 - Step 5: Solve for x
x = 11,364,986,843,769.26/3,855,130.29 - Step 6: Final answer
x = 2,948,016.28
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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.