Finding the Fourth Proportional to 3,990,895.92, 5,507,352 and 2,271,991.68
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Solution
The fourth proportional to 3,990,895.92, 5,507,352 and 2,271,991.68 is: 3,135,300.49
Step by Step Solution
- Step 1: Write the proportion equation
3,990,895.92 : 5,507,352 = 2,271,991.68 : x - Step 2: Convert to fraction form
3,990,895.92/5,507,352 = 2,271,991.68/x - Step 3: Cross multiply
3,990,895.92x = 5,507,352 × 2,271,991.68 - Step 4: Simplify right side
3,990,895.92x = 12,512,657,922,831.36 - Step 5: Solve for x
x = 12,512,657,922,831.36/3,990,895.92 - Step 6: Final answer
x = 3,135,300.49
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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.