Finding the Fourth Proportional to 18,457,435.44, 27,686,221.20 and 5,677,851.60
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Solution
The fourth proportional to 18,457,435.44, 27,686,221.20 and 5,677,851.60 is: 8,516,798.33
Step by Step Solution
- Step 1: Write the proportion equation
18,457,435.44 : 27,686,221.20 = 5,677,851.60 : x - Step 2: Convert to fraction form
18,457,435.44/27,686,221.20 = 5,677,851.60/x - Step 3: Cross multiply
18,457,435.44x = 27,686,221.20 × 5,677,851.60 - Step 4: Simplify right side
18,457,435.44x = 157,198,255,338,373.91 - Step 5: Solve for x
x = 157,198,255,338,373.91/18,457,435.44 - Step 6: Final answer
x = 8,516,798.33
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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.