Finding the Fourth Proportional to 134,798,464.80, 202,197,697.20 and 80,378,906.40
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Solution
The fourth proportional to 134,798,464.80, 202,197,697.20 and 80,378,906.40 is: 120,568,359.60
Step by Step Solution
- Step 1: Write the proportion equation
134,798,464.80 : 202,197,697.20 = 80,378,906.40 : x - Step 2: Convert to fraction form
134,798,464.80/202,197,697.20 = 80,378,906.40/x - Step 3: Cross multiply
134,798,464.80x = 202,197,697.20 × 80,378,906.40 - Step 4: Simplify right side
134,798,464.80x = 16,252,429,777,534,342 - Step 5: Solve for x
x = 16,252,429,777,534,342/134,798,464.80 - Step 6: Final answer
x = 120,568,359.60
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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.