Finding the Fourth Proportional to 18,190,146.70, 27,285,220.05 and 16,516,107.55
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Solution
The fourth proportional to 18,190,146.70, 27,285,220.05 and 16,516,107.55 is: 24,774,161.33
Step by Step Solution
- Step 1: Write the proportion equation
18,190,146.70 : 27,285,220.05 = 16,516,107.55 : x - Step 2: Convert to fraction form
18,190,146.70/27,285,220.05 = 16,516,107.55/x - Step 3: Cross multiply
18,190,146.70x = 27,285,220.05 × 16,516,107.55 - Step 4: Simplify right side
18,190,146.70x = 450,645,628,871,216.44 - Step 5: Solve for x
x = 450,645,628,871,216.44/18,190,146.70 - Step 6: Final answer
x = 24,774,161.33
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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.