Finding the Fourth Proportional to 5,164,074.81, 7,126,324.01 and 2,840,831.49
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Solution
The fourth proportional to 5,164,074.81, 7,126,324.01 and 2,840,831.49 is: 3,920,292.87
Step by Step Solution
- Step 1: Write the proportion equation
5,164,074.81 : 7,126,324.01 = 2,840,831.49 : x - Step 2: Convert to fraction form
5,164,074.81/7,126,324.01 = 2,840,831.49/x - Step 3: Cross multiply
5,164,074.81x = 7,126,324.01 × 2,840,831.49 - Step 4: Simplify right side
5,164,074.81x = 20,244,685,678,723.75 - Step 5: Solve for x
x = 20,244,685,678,723.75/5,164,074.81 - Step 6: Final answer
x = 3,920,292.87
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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.