Finding the Fourth Proportional to 3,803,213.78, 5,246,785.56 and 2,515,850.81
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Solution
The fourth proportional to 3,803,213.78, 5,246,785.56 and 2,515,850.81 is: 3,470,782.99
Step by Step Solution
- Step 1: Write the proportion equation
3,803,213.78 : 5,246,785.56 = 2,515,850.81 : x - Step 2: Convert to fraction form
3,803,213.78/5,246,785.56 = 2,515,850.81/x - Step 3: Cross multiply
3,803,213.78x = 5,246,785.56 × 2,515,850.81 - Step 4: Simplify right side
3,803,213.78x = 13,200,129,701,022.30 - Step 5: Solve for x
x = 13,200,129,701,022.30/3,803,213.78 - Step 6: Final answer
x = 3,470,782.99
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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.