Finding the Fourth Proportional to 5,177,855.92, 7,145,488.56 and 2,854,831.81
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Solution
The fourth proportional to 5,177,855.92, 7,145,488.56 and 2,854,831.81 is: 3,939,694.03
Step by Step Solution
- Step 1: Write the proportion equation
5,177,855.92 : 7,145,488.56 = 2,854,831.81 : x - Step 2: Convert to fraction form
5,177,855.92/7,145,488.56 = 2,854,831.81/x - Step 3: Cross multiply
5,177,855.92x = 7,145,488.56 × 2,854,831.81 - Step 4: Simplify right side
5,177,855.92x = 20,399,168,039,079.09 - Step 5: Solve for x
x = 20,399,168,039,079.09/5,177,855.92 - Step 6: Final answer
x = 3,939,694.03
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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.