Finding the Fourth Proportional to 10,856,987.80, 16,285,481.70 and 2,878,811.80
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Solution
The fourth proportional to 10,856,987.80, 16,285,481.70 and 2,878,811.80 is: 4,318,217.70
Step by Step Solution
- Step 1: Write the proportion equation
10,856,987.80 : 16,285,481.70 = 2,878,811.80 : x - Step 2: Convert to fraction form
10,856,987.80/16,285,481.70 = 2,878,811.80/x - Step 3: Cross multiply
10,856,987.80x = 16,285,481.70 × 2,878,811.80 - Step 4: Simplify right side
10,856,987.80x = 46,882,836,886,644.05 - Step 5: Solve for x
x = 46,882,836,886,644.05/10,856,987.80 - Step 6: Final answer
x = 4,318,217.70
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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.