Finding the Fourth Proportional to 20,107,611.60, 27,747,675.06 and 10,940,290.80
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Solution
The fourth proportional to 20,107,611.60, 27,747,675.06 and 10,940,290.80 is: 15,097,150.28
Step by Step Solution
- Step 1: Write the proportion equation
20,107,611.60 : 27,747,675.06 = 10,940,290.80 : x - Step 2: Convert to fraction form
20,107,611.60/27,747,675.06 = 10,940,290.80/x - Step 3: Cross multiply
20,107,611.60x = 27,747,675.06 × 10,940,290.80 - Step 4: Simplify right side
20,107,611.60x = 303,567,634,180,307.44 - Step 5: Solve for x
x = 303,567,634,180,307.44/20,107,611.60 - Step 6: Final answer
x = 15,097,150.28
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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.