Finding the Fourth Proportional to 220,196,620.20, 330,284,432.70 and 74,615,903.40
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Solution
The fourth proportional to 220,196,620.20, 330,284,432.70 and 74,615,903.40 is: 111,920,297.88
Step by Step Solution
- Step 1: Write the proportion equation
220,196,620.20 : 330,284,432.70 = 74,615,903.40 : x - Step 2: Convert to fraction form
220,196,620.20/330,284,432.70 = 74,615,903.40/x - Step 3: Cross multiply
220,196,620.20x = 330,284,432.70 × 74,615,903.40 - Step 4: Simplify right side
220,196,620.20x = 24,644,471,324,867,004 - Step 5: Solve for x
x = 24,644,471,324,867,004/220,196,620.20 - Step 6: Final answer
x = 111,920,297.88
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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.