Finding the Fourth Proportional to 6,489,319.16, 9,728,729.67 and 3,964,121.48
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Solution
The fourth proportional to 6,489,319.16, 9,728,729.67 and 3,964,121.48 is: 5,942,975.73
Step by Step Solution
- Step 1: Write the proportion equation
6,489,319.16 : 9,728,729.67 = 3,964,121.48 : x - Step 2: Convert to fraction form
6,489,319.16/9,728,729.67 = 3,964,121.48/x - Step 3: Cross multiply
6,489,319.16x = 9,728,729.67 × 3,964,121.48 - Step 4: Simplify right side
6,489,319.16x = 38,565,866,257,960.31 - Step 5: Solve for x
x = 38,565,866,257,960.31/6,489,319.16 - Step 6: Final answer
x = 5,942,975.73
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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.