Finding the Fourth Proportional to 21,453,230.96, 29,606,074.80 and 13,081,091.84
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Solution
The fourth proportional to 21,453,230.96, 29,606,074.80 and 13,081,091.84 is: 18,052,282.39
Step by Step Solution
- Step 1: Write the proportion equation
21,453,230.96 : 29,606,074.80 = 13,081,091.84 : x - Step 2: Convert to fraction form
21,453,230.96/29,606,074.80 = 13,081,091.84/x - Step 3: Cross multiply
21,453,230.96x = 29,606,074.80 × 13,081,091.84 - Step 4: Simplify right side
21,453,230.96x = 387,279,783,480,709.62 - Step 5: Solve for x
x = 387,279,783,480,709.62/21,453,230.96 - Step 6: Final answer
x = 18,052,282.39
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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.