Finding the Fourth Proportional to 129,025,144.80, 193,537,717.20 and 48,235,615.20
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Solution
The fourth proportional to 129,025,144.80, 193,537,717.20 and 48,235,615.20 is: 72,353,422.80
Step by Step Solution
- Step 1: Write the proportion equation
129,025,144.80 : 193,537,717.20 = 48,235,615.20 : x - Step 2: Convert to fraction form
129,025,144.80/193,537,717.20 = 48,235,615.20/x - Step 3: Cross multiply
129,025,144.80x = 193,537,717.20 × 48,235,615.20 - Step 4: Simplify right side
129,025,144.80x = 9,335,410,853,545,622 - Step 5: Solve for x
x = 9,335,410,853,545,622/129,025,144.80 - Step 6: Final answer
x = 72,353,422.80
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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.