Finding the Fourth Proportional to 21,463,843.60, 32,170,882.20 and 8,675,952.40
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Solution
The fourth proportional to 21,463,843.60, 32,170,882.20 and 8,675,952.40 is: 13,003,870.50
Step by Step Solution
- Step 1: Write the proportion equation
21,463,843.60 : 32,170,882.20 = 8,675,952.40 : x - Step 2: Convert to fraction form
21,463,843.60/32,170,882.20 = 8,675,952.40/x - Step 3: Cross multiply
21,463,843.60x = 32,170,882.20 × 8,675,952.40 - Step 4: Simplify right side
21,463,843.60x = 279,113,042,633,207.28 - Step 5: Solve for x
x = 279,113,042,633,207.28/21,463,843.60 - Step 6: Final answer
x = 13,003,870.50
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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.