Finding the Fourth Proportional to 3,855,657.93, 5,321,115.11 and 2,136,943.05
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Solution
The fourth proportional to 3,855,657.93, 5,321,115.11 and 2,136,943.05 is: 2,949,151.65
Step by Step Solution
- Step 1: Write the proportion equation
3,855,657.93 : 5,321,115.11 = 2,136,943.05 : x - Step 2: Convert to fraction form
3,855,657.93/5,321,115.11 = 2,136,943.05/x - Step 3: Cross multiply
3,855,657.93x = 5,321,115.11 × 2,136,943.05 - Step 4: Simplify right side
3,855,657.93x = 11,370,919,941,879.77 - Step 5: Solve for x
x = 11,370,919,941,879.77/3,855,657.93 - Step 6: Final answer
x = 2,949,151.65
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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.