Finding the Fourth Proportional to 3,687,811.38, 5,077,598.81 and 3,135,440.79
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Solution
The fourth proportional to 3,687,811.38, 5,077,598.81 and 3,135,440.79 is: 4,317,062.01
Step by Step Solution
- Step 1: Write the proportion equation
3,687,811.38 : 5,077,598.81 = 3,135,440.79 : x - Step 2: Convert to fraction form
3,687,811.38/5,077,598.81 = 3,135,440.79/x - Step 3: Cross multiply
3,687,811.38x = 5,077,598.81 × 3,135,440.79 - Step 4: Simplify right side
3,687,811.38x = 15,920,510,408,452.26 - Step 5: Solve for x
x = 15,920,510,408,452.26/3,687,811.38 - Step 6: Final answer
x = 4,317,062.01
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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.