Finding the Fourth Proportional to 120,406,231.76, 166,174,383.60 and 67,497,229.52
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Solution
The fourth proportional to 120,406,231.76, 166,174,383.60 and 67,497,229.52 is: 93,153,903.63
Step by Step Solution
- Step 1: Write the proportion equation
120,406,231.76 : 166,174,383.60 = 67,497,229.52 : x - Step 2: Convert to fraction form
120,406,231.76/166,174,383.60 = 67,497,229.52/x - Step 3: Cross multiply
120,406,231.76x = 166,174,383.60 × 67,497,229.52 - Step 4: Simplify right side
120,406,231.76x = 11,216,310,510,193,722 - Step 5: Solve for x
x = 11,216,310,510,193,722/120,406,231.76 - Step 6: Final answer
x = 93,153,903.63
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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.