Finding the Fourth Proportional to 4,098,986.80, 6,138,638.70 and 2,201,545.60
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Solution
The fourth proportional to 4,098,986.80, 6,138,638.70 and 2,201,545.60 is: 3,297,032.58
Step by Step Solution
- Step 1: Write the proportion equation
4,098,986.80 : 6,138,638.70 = 2,201,545.60 : x - Step 2: Convert to fraction form
4,098,986.80/6,138,638.70 = 2,201,545.60/x - Step 3: Cross multiply
4,098,986.80x = 6,138,638.70 × 2,201,545.60 - Step 4: Simplify right side
4,098,986.80x = 13,514,493,019,974.72 - Step 5: Solve for x
x = 13,514,493,019,974.72/4,098,986.80 - Step 6: Final answer
x = 3,297,032.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.