Finding the Fourth Proportional to 3,855,131.29, 5,320,066.84 and 2,136,250.44
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Solution
The fourth proportional to 3,855,131.29, 5,320,066.84 and 2,136,250.44 is: 2,948,017.66
Step by Step Solution
- Step 1: Write the proportion equation
3,855,131.29 : 5,320,066.84 = 2,136,250.44 : x - Step 2: Convert to fraction form
3,855,131.29/5,320,066.84 = 2,136,250.44/x - Step 3: Cross multiply
3,855,131.29x = 5,320,066.84 × 2,136,250.44 - Step 4: Simplify right side
3,855,131.29x = 11,364,995,127,779.41 - Step 5: Solve for x
x = 11,364,995,127,779.41/3,855,131.29 - Step 6: Final answer
x = 2,948,017.66
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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.