Finding the Fourth Proportional to 21,776,997.12, 32,665,496.64 and 8,131,207.68
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Solution
The fourth proportional to 21,776,997.12, 32,665,496.64 and 8,131,207.68 is: 12,196,811.88
Step by Step Solution
- Step 1: Write the proportion equation
21,776,997.12 : 32,665,496.64 = 8,131,207.68 : x - Step 2: Convert to fraction form
21,776,997.12/32,665,496.64 = 8,131,207.68/x - Step 3: Cross multiply
21,776,997.12x = 32,665,496.64 × 8,131,207.68 - Step 4: Simplify right side
21,776,997.12x = 265,609,937,150,182.19 - Step 5: Solve for x
x = 265,609,937,150,182.19/21,776,997.12 - Step 6: Final answer
x = 12,196,811.88
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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.