Finding the Fourth Proportional to 4,447,285.20, 6,137,911.84 and 2,815,843.96
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Solution
The fourth proportional to 4,447,285.20, 6,137,911.84 and 2,815,843.96 is: 3,886,281.45
Step by Step Solution
- Step 1: Write the proportion equation
4,447,285.20 : 6,137,911.84 = 2,815,843.96 : x - Step 2: Convert to fraction form
4,447,285.20/6,137,911.84 = 2,815,843.96/x - Step 3: Cross multiply
4,447,285.20x = 6,137,911.84 × 2,815,843.96 - Step 4: Simplify right side
4,447,285.20x = 17,283,401,981,676.49 - Step 5: Solve for x
x = 17,283,401,981,676.49/4,447,285.20 - Step 6: Final answer
x = 3,886,281.45
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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.