Finding the Fourth Proportional to 18,170,113.14, 27,255,169.70 and 7,384,887.09
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Solution
The fourth proportional to 18,170,113.14, 27,255,169.70 and 7,384,887.09 is: 11,077,330.63
Step by Step Solution
- Step 1: Write the proportion equation
18,170,113.14 : 27,255,169.70 = 7,384,887.09 : x - Step 2: Convert to fraction form
18,170,113.14/27,255,169.70 = 7,384,887.09/x - Step 3: Cross multiply
18,170,113.14x = 27,255,169.70 × 7,384,887.09 - Step 4: Simplify right side
18,170,113.14x = 201,276,350,853,289.16 - Step 5: Solve for x
x = 201,276,350,853,289.16/18,170,113.14 - Step 6: Final answer
x = 11,077,330.63
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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.