Finding the Fourth Proportional to 3,879,440.56, 5,353,794.08 and 2,160,561.07
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Solution
The fourth proportional to 3,879,440.56, 5,353,794.08 and 2,160,561.07 is: 2,981,666.79
Step by Step Solution
- Step 1: Write the proportion equation
3,879,440.56 : 5,353,794.08 = 2,160,561.07 : x - Step 2: Convert to fraction form
3,879,440.56/5,353,794.08 = 2,160,561.07/x - Step 3: Cross multiply
3,879,440.56x = 5,353,794.08 × 2,160,561.07 - Step 4: Simplify right side
3,879,440.56x = 11,567,199,066,044.46 - Step 5: Solve for x
x = 11,567,199,066,044.46/3,879,440.56 - Step 6: Final answer
x = 2,981,666.79
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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.