Finding the Fourth Proportional to 11,920,842.32, 17,855,193.41 and 8,452,067.49
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Solution
The fourth proportional to 11,920,842.32, 17,855,193.41 and 8,452,067.49 is: 12,659,617.14
Step by Step Solution
- Step 1: Write the proportion equation
11,920,842.32 : 17,855,193.41 = 8,452,067.49 : x - Step 2: Convert to fraction form
11,920,842.32/17,855,193.41 = 8,452,067.49/x - Step 3: Cross multiply
11,920,842.32x = 17,855,193.41 × 8,452,067.49 - Step 4: Simplify right side
11,920,842.32x = 150,913,299,706,062.91 - Step 5: Solve for x
x = 150,913,299,706,062.91/11,920,842.32 - Step 6: Final answer
x = 12,659,617.14
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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.