Finding the Fourth Proportional to 8,170,702.56, 12,258,814.32 and 3,621,129.12
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Solution
The fourth proportional to 8,170,702.56, 12,258,814.32 and 3,621,129.12 is: 5,432,917.08
Step by Step Solution
- Step 1: Write the proportion equation
8,170,702.56 : 12,258,814.32 = 3,621,129.12 : x - Step 2: Convert to fraction form
8,170,702.56/12,258,814.32 = 3,621,129.12/x - Step 3: Cross multiply
8,170,702.56x = 12,258,814.32 × 3,621,129.12 - Step 4: Simplify right side
8,170,702.56x = 44,390,749,510,825 - Step 5: Solve for x
x = 44,390,749,510,825/8,170,702.56 - Step 6: Final answer
x = 5,432,917.08
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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.