Finding the Fourth Proportional to 21,821,305.05, 32,694,917.35 and 13,167,221.99
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Solution
The fourth proportional to 21,821,305.05, 32,694,917.35 and 13,167,221.99 is: 19,728,482.49
Step by Step Solution
- Step 1: Write the proportion equation
21,821,305.05 : 32,694,917.35 = 13,167,221.99 : x - Step 2: Convert to fraction form
21,821,305.05/32,694,917.35 = 13,167,221.99/x - Step 3: Cross multiply
21,821,305.05x = 32,694,917.35 × 13,167,221.99 - Step 4: Simplify right side
21,821,305.05x = 430,501,234,495,759.88 - Step 5: Solve for x
x = 430,501,234,495,759.88/21,821,305.05 - Step 6: Final answer
x = 19,728,482.49
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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.