Finding the Fourth Proportional to 8,168,937.12, 12,260,971.92 and 4,128,268.32
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Solution
The fourth proportional to 8,168,937.12, 12,260,971.92 and 4,128,268.32 is: 6,196,226.17
Step by Step Solution
- Step 1: Write the proportion equation
8,168,937.12 : 12,260,971.92 = 4,128,268.32 : x - Step 2: Convert to fraction form
8,168,937.12/12,260,971.92 = 4,128,268.32/x - Step 3: Cross multiply
8,168,937.12x = 12,260,971.92 × 4,128,268.32 - Step 4: Simplify right side
8,168,937.12x = 50,616,581,949,745.57 - Step 5: Solve for x
x = 50,616,581,949,745.57/8,168,937.12 - Step 6: Final answer
x = 6,196,226.17
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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.