Finding the Fourth Proportional to 13,181,388.42, 18,192,225.74 and 7,380,543.99
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Solution
The fourth proportional to 13,181,388.42, 18,192,225.74 and 7,380,543.99 is: 10,186,220.00
Step by Step Solution
- Step 1: Write the proportion equation
13,181,388.42 : 18,192,225.74 = 7,380,543.99 : x - Step 2: Convert to fraction form
13,181,388.42/18,192,225.74 = 7,380,543.99/x - Step 3: Cross multiply
13,181,388.42x = 18,192,225.74 × 7,380,543.99 - Step 4: Simplify right side
13,181,388.42x = 134,268,522,350,080.30 - Step 5: Solve for x
x = 134,268,522,350,080.30/13,181,388.42 - Step 6: Final answer
x = 10,186,220.00
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1.5x scale
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.