Finding the Fourth Proportional to 13,257,056.70, 18,297,249.39 and 8,297,797.68
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Solution
The fourth proportional to 13,257,056.70, 18,297,249.39 and 8,297,797.68 is: 11,452,532.56
Step by Step Solution
- Step 1: Write the proportion equation
13,257,056.70 : 18,297,249.39 = 8,297,797.68 : x - Step 2: Convert to fraction form
13,257,056.70/18,297,249.39 = 8,297,797.68/x - Step 3: Cross multiply
13,257,056.70x = 18,297,249.39 × 8,297,797.68 - Step 4: Simplify right side
13,257,056.70x = 151,826,873,538,723.41 - Step 5: Solve for x
x = 151,826,873,538,723.41/13,257,056.70 - Step 6: Final answer
x = 11,452,532.56
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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.