Finding the Fourth Proportional to 3,768,608.64, 5,639,849.28 and 3,611,844.48
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Solution
The fourth proportional to 3,768,608.64, 5,639,849.28 and 3,611,844.48 is: 5,405,246.45
Step by Step Solution
- Step 1: Write the proportion equation
3,768,608.64 : 5,639,849.28 = 3,611,844.48 : x - Step 2: Convert to fraction form
3,768,608.64/5,639,849.28 = 3,611,844.48/x - Step 3: Cross multiply
3,768,608.64x = 5,639,849.28 × 3,611,844.48 - Step 4: Simplify right side
3,768,608.64x = 20,370,258,489,999.98 - Step 5: Solve for x
x = 20,370,258,489,999.98/3,768,608.64 - Step 6: Final answer
x = 5,405,246.45
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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.