Finding the Fourth Proportional to 5,420,657.43, 7,489,293.71 and 4,613,391.99
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Solution
The fourth proportional to 5,420,657.43, 7,489,293.71 and 4,613,391.99 is: 6,373,958.89
Step by Step Solution
- Step 1: Write the proportion equation
5,420,657.43 : 7,489,293.71 = 4,613,391.99 : x - Step 2: Convert to fraction form
5,420,657.43/7,489,293.71 = 4,613,391.99/x - Step 3: Cross multiply
5,420,657.43x = 7,489,293.71 × 4,613,391.99 - Step 4: Simplify right side
5,420,657.43x = 34,551,047,589,404.43 - Step 5: Solve for x
x = 34,551,047,589,404.43/5,420,657.43 - Step 6: Final answer
x = 6,373,958.89
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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.