Finding the Fourth Proportional to 3,768,517.36, 5,200,442.76 and 2,137,073.68
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Solution
The fourth proportional to 3,768,517.36, 5,200,442.76 and 2,137,073.68 is: 2,949,098.62
Step by Step Solution
- Step 1: Write the proportion equation
3,768,517.36 : 5,200,442.76 = 2,137,073.68 : x - Step 2: Convert to fraction form
3,768,517.36/5,200,442.76 = 2,137,073.68/x - Step 3: Cross multiply
3,768,517.36x = 5,200,442.76 × 2,137,073.68 - Step 4: Simplify right side
3,768,517.36x = 11,113,729,346,742.56 - Step 5: Solve for x
x = 11,113,729,346,742.56/3,768,517.36 - Step 6: Final answer
x = 2,949,098.62
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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.