Finding the Fourth Proportional to 3,979,820.16, 5,492,170.35 and 2,261,034.99
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Solution
The fourth proportional to 3,979,820.16, 5,492,170.35 and 2,261,034.99 is: 3,120,238.81
Step by Step Solution
- Step 1: Write the proportion equation
3,979,820.16 : 5,492,170.35 = 2,261,034.99 : x - Step 2: Convert to fraction form
3,979,820.16/5,492,170.35 = 2,261,034.99/x - Step 3: Cross multiply
3,979,820.16x = 5,492,170.35 × 2,261,034.99 - Step 4: Simplify right side
3,979,820.16x = 12,417,989,332,390.55 - Step 5: Solve for x
x = 12,417,989,332,390.55/3,979,820.16 - Step 6: Final answer
x = 3,120,238.81
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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.