Finding the Fourth Proportional to 6,879,904.79, 9,494,274.68 and 3,782,480.84
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Solution
The fourth proportional to 6,879,904.79, 9,494,274.68 and 3,782,480.84 is: 5,219,826.90
Step by Step Solution
- Step 1: Write the proportion equation
6,879,904.79 : 9,494,274.68 = 3,782,480.84 : x - Step 2: Convert to fraction form
6,879,904.79/9,494,274.68 = 3,782,480.84/x - Step 3: Cross multiply
6,879,904.79x = 9,494,274.68 × 3,782,480.84 - Step 4: Simplify right side
6,879,904.79x = 35,911,912,124,882.93 - Step 5: Solve for x
x = 35,911,912,124,882.93/6,879,904.79 - Step 6: Final answer
x = 5,219,826.90
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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.