Finding the Fourth Proportional to 7,190,917.45, 9,923,407.11 and 3,927,734.23
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Solution
The fourth proportional to 7,190,917.45, 9,923,407.11 and 3,927,734.23 is: 5,420,241.03
Step by Step Solution
- Step 1: Write the proportion equation
7,190,917.45 : 9,923,407.11 = 3,927,734.23 : x - Step 2: Convert to fraction form
7,190,917.45/9,923,407.11 = 3,927,734.23/x - Step 3: Cross multiply
7,190,917.45x = 9,923,407.11 × 3,927,734.23 - Step 4: Simplify right side
7,190,917.45x = 38,976,505,784,172.38 - Step 5: Solve for x
x = 38,976,505,784,172.38/7,190,917.45 - Step 6: Final answer
x = 5,420,241.03
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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.