Finding the Fourth Proportional to 3,936,548.60, 5,431,779.24 and 2,193,837.40
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Solution
The fourth proportional to 3,936,548.60, 5,431,779.24 and 2,193,837.40 is: 3,027,129.00
Step by Step Solution
- Step 1: Write the proportion equation
3,936,548.60 : 5,431,779.24 = 2,193,837.40 : x - Step 2: Convert to fraction form
3,936,548.60/5,431,779.24 = 2,193,837.40/x - Step 3: Cross multiply
3,936,548.60x = 5,431,779.24 × 2,193,837.40 - Step 4: Simplify right side
3,936,548.60x = 11,916,440,445,255.58 - Step 5: Solve for x
x = 11,916,440,445,255.58/3,936,548.60 - Step 6: Final answer
x = 3,027,129.00
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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.