Finding the Fourth Proportional to 7,877,845.20, 11,818,758.36 and 2,198,066
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Solution
The fourth proportional to 7,877,845.20, 11,818,758.36 and 2,198,066 is: 3,297,654.40
Step by Step Solution
- Step 1: Write the proportion equation
7,877,845.20 : 11,818,758.36 = 2,198,066 : x - Step 2: Convert to fraction form
7,877,845.20/11,818,758.36 = 2,198,066/x - Step 3: Cross multiply
7,877,845.20x = 11,818,758.36 × 2,198,066 - Step 4: Simplify right side
7,877,845.20x = 25,978,410,913,331.76 - Step 5: Solve for x
x = 25,978,410,913,331.76/7,877,845.20 - Step 6: Final answer
x = 3,297,654.40
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1.5x scale
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.