Finding the Fourth Proportional to 5,280,079.68, 7,286,315.04 and 2,865,579.84
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Solution
The fourth proportional to 5,280,079.68, 7,286,315.04 and 2,865,579.84 is: 3,954,394.39
Step by Step Solution
- Step 1: Write the proportion equation
5,280,079.68 : 7,286,315.04 = 2,865,579.84 : x - Step 2: Convert to fraction form
5,280,079.68/7,286,315.04 = 2,865,579.84/x - Step 3: Cross multiply
5,280,079.68x = 7,286,315.04 × 2,865,579.84 - Step 4: Simplify right side
5,280,079.68x = 20,879,517,486,512.79 - Step 5: Solve for x
x = 20,879,517,486,512.79/5,280,079.68 - Step 6: Final answer
x = 3,954,394.39
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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.