Finding the Fourth Proportional to 220,752,164.40, 331,128,246.60 and 216,217,201.20
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Solution
The fourth proportional to 220,752,164.40, 331,128,246.60 and 216,217,201.20 is: 324,325,801.80
Step by Step Solution
- Step 1: Write the proportion equation
220,752,164.40 : 331,128,246.60 = 216,217,201.20 : x - Step 2: Convert to fraction form
220,752,164.40/331,128,246.60 = 216,217,201.20/x - Step 3: Cross multiply
220,752,164.40x = 331,128,246.60 × 216,217,201.20 - Step 4: Simplify right side
220,752,164.40x = 71,595,622,718,115,416 - Step 5: Solve for x
x = 71,595,622,718,115,416/220,752,164.40 - Step 6: Final answer
x = 324,325,801.80
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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.