Finding the Fourth Proportional to 5,454,815.20, 8,180,910.60 and 1,668,330.88
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Solution
The fourth proportional to 5,454,815.20, 8,180,910.60 and 1,668,330.88 is: 2,502,094.99
Step by Step Solution
- Step 1: Write the proportion equation
5,454,815.20 : 8,180,910.60 = 1,668,330.88 : x - Step 2: Convert to fraction form
5,454,815.20/8,180,910.60 = 1,668,330.88/x - Step 3: Cross multiply
5,454,815.20x = 8,180,910.60 × 1,668,330.88 - Step 4: Simplify right side
5,454,815.20x = 13,648,465,780,499.33 - Step 5: Solve for x
x = 13,648,465,780,499.33/5,454,815.20 - Step 6: Final answer
x = 2,502,094.99
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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.