Finding the Fourth Proportional to 6,397,899.68, 9,596,849.34 and 2,138,067.80
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Solution
The fourth proportional to 6,397,899.68, 9,596,849.34 and 2,138,067.80 is: 3,207,101.64
Step by Step Solution
- Step 1: Write the proportion equation
6,397,899.68 : 9,596,849.34 = 2,138,067.80 : x - Step 2: Convert to fraction form
6,397,899.68/9,596,849.34 = 2,138,067.80/x - Step 3: Cross multiply
6,397,899.68x = 9,596,849.34 × 2,138,067.80 - Step 4: Simplify right side
6,397,899.68x = 20,518,714,555,305.25 - Step 5: Solve for x
x = 20,518,714,555,305.25/6,397,899.68 - Step 6: Final answer
x = 3,207,101.64
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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.