Finding the Fourth Proportional to 3,820,135.62, 5,271,677.16 and 2,101,256.10
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Solution
The fourth proportional to 3,820,135.62, 5,271,677.16 and 2,101,256.10 is: 2,899,672.92
Step by Step Solution
- Step 1: Write the proportion equation
3,820,135.62 : 5,271,677.16 = 2,101,256.10 : x - Step 2: Convert to fraction form
3,820,135.62/5,271,677.16 = 2,101,256.10/x - Step 3: Cross multiply
3,820,135.62x = 5,271,677.16 × 2,101,256.10 - Step 4: Simplify right side
3,820,135.62x = 11,077,143,789,680.68 - Step 5: Solve for x
x = 11,077,143,789,680.68/3,820,135.62 - Step 6: Final answer
x = 2,899,672.92
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1.5x scale
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.