Finding the Fourth Proportional to 10,233,611.60, 15,330,199.80 and 5,188,542.80
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Solution
The fourth proportional to 10,233,611.60, 15,330,199.80 and 5,188,542.80 is: 7,772,563.68
Step by Step Solution
- Step 1: Write the proportion equation
10,233,611.60 : 15,330,199.80 = 5,188,542.80 : x - Step 2: Convert to fraction form
10,233,611.60/15,330,199.80 = 5,188,542.80/x - Step 3: Cross multiply
10,233,611.60x = 15,330,199.80 × 5,188,542.80 - Step 4: Simplify right side
10,233,611.60x = 79,541,397,794,851.44 - Step 5: Solve for x
x = 79,541,397,794,851.44/10,233,611.60 - Step 6: Final answer
x = 7,772,563.68
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1.5x scale
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.