Finding the Fourth Proportional to 3,987,793.42, 5,503,177.32 and 2,268,913.93
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Solution
The fourth proportional to 3,987,793.42, 5,503,177.32 and 2,268,913.93 is: 3,131,113.96
Step by Step Solution
- Step 1: Write the proportion equation
3,987,793.42 : 5,503,177.32 = 2,268,913.93 : x - Step 2: Convert to fraction form
3,987,793.42/5,503,177.32 = 2,268,913.93/x - Step 3: Cross multiply
3,987,793.42x = 5,503,177.32 × 2,268,913.93 - Step 4: Simplify right side
3,987,793.42x = 12,486,235,658,341.70 - Step 5: Solve for x
x = 12,486,235,658,341.70/3,987,793.42 - Step 6: Final answer
x = 3,131,113.96
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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.