Finding the Fourth Proportional to 5,404,741.08, 8,107,205.58 and 1,991,270.67
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Solution
The fourth proportional to 5,404,741.08, 8,107,205.58 and 1,991,270.67 is: 2,986,940.62
Step by Step Solution
- Step 1: Write the proportion equation
5,404,741.08 : 8,107,205.58 = 1,991,270.67 : x - Step 2: Convert to fraction form
5,404,741.08/8,107,205.58 = 1,991,270.67/x - Step 3: Cross multiply
5,404,741.08x = 8,107,205.58 × 1,991,270.67 - Step 4: Simplify right side
5,404,741.08x = 16,143,640,687,114.34 - Step 5: Solve for x
x = 16,143,640,687,114.34/5,404,741.08 - Step 6: Final answer
x = 2,986,940.62
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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.