Finding the Fourth Proportional to 11,028,423.20, 16,542,640.80 and 3,455,981.60
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Solution
The fourth proportional to 11,028,423.20, 16,542,640.80 and 3,455,981.60 is: 5,183,974.28
Step by Step Solution
- Step 1: Write the proportion equation
11,028,423.20 : 16,542,640.80 = 3,455,981.60 : x - Step 2: Convert to fraction form
11,028,423.20/16,542,640.80 = 3,455,981.60/x - Step 3: Cross multiply
11,028,423.20x = 16,542,640.80 × 3,455,981.60 - Step 4: Simplify right side
11,028,423.20x = 57,171,062,220,209.28 - Step 5: Solve for x
x = 57,171,062,220,209.28/11,028,423.20 - Step 6: Final answer
x = 5,183,974.28
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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.