Finding the Fourth Proportional to 6,163,784.21, 8,509,443.00 and 3,717,015.09
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Solution
The fourth proportional to 6,163,784.21, 8,509,443.00 and 3,717,015.09 is: 5,131,543.69
Step by Step Solution
- Step 1: Write the proportion equation
6,163,784.21 : 8,509,443.00 = 3,717,015.09 : x - Step 2: Convert to fraction form
6,163,784.21/8,509,443.00 = 3,717,015.09/x - Step 3: Cross multiply
6,163,784.21x = 8,509,443.00 × 3,717,015.09 - Step 4: Simplify right side
6,163,784.21x = 31,629,727,992,645.65 - Step 5: Solve for x
x = 31,629,727,992,645.65/6,163,784.21 - Step 6: Final answer
x = 5,131,543.69
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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.