Finding the Fourth Proportional to 4,811,856.84, 6,640,159.68 and 2,876,974.20
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Solution
The fourth proportional to 4,811,856.84, 6,640,159.68 and 2,876,974.20 is: 3,970,103.17
Step by Step Solution
- Step 1: Write the proportion equation
4,811,856.84 : 6,640,159.68 = 2,876,974.20 : x - Step 2: Convert to fraction form
4,811,856.84/6,640,159.68 = 2,876,974.20/x - Step 3: Cross multiply
4,811,856.84x = 6,640,159.68 × 2,876,974.20 - Step 4: Simplify right side
4,811,856.84x = 19,103,568,083,240.26 - Step 5: Solve for x
x = 19,103,568,083,240.26/4,811,856.84 - Step 6: Final answer
x = 3,970,103.17
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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.