Finding the Fourth Proportional to 18,278,917.56, 25,224,906.12 and 10,130,680.44
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Solution
The fourth proportional to 18,278,917.56, 25,224,906.12 and 10,130,680.44 is: 13,980,338.94
Step by Step Solution
- Step 1: Write the proportion equation
18,278,917.56 : 25,224,906.12 = 10,130,680.44 : x - Step 2: Convert to fraction form
18,278,917.56/25,224,906.12 = 10,130,680.44/x - Step 3: Cross multiply
18,278,917.56x = 25,224,906.12 × 10,130,680.44 - Step 4: Simplify right side
18,278,917.56x = 255,545,463,030,720.28 - Step 5: Solve for x
x = 255,545,463,030,720.28/18,278,917.56 - Step 6: Final answer
x = 13,980,338.94
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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.