Finding the Fourth Proportional to 3,879,710.64, 5,354,166.84 and 2,160,831.60
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Solution
The fourth proportional to 3,879,710.64, 5,354,166.84 and 2,160,831.60 is: 2,982,040.15
Step by Step Solution
- Step 1: Write the proportion equation
3,879,710.64 : 5,354,166.84 = 2,160,831.60 : x - Step 2: Convert to fraction form
3,879,710.64/5,354,166.84 = 2,160,831.60/x - Step 3: Cross multiply
3,879,710.64x = 5,354,166.84 × 2,160,831.60 - Step 4: Simplify right side
3,879,710.64x = 11,569,452,899,544.14 - Step 5: Solve for x
x = 11,569,452,899,544.14/3,879,710.64 - Step 6: Final answer
x = 2,982,040.15
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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.