Finding the Fourth Proportional to 129,446,775.40, 194,170,163.10 and 119,593,028.20
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Solution
The fourth proportional to 129,446,775.40, 194,170,163.10 and 119,593,028.20 is: 179,389,542.30
Step by Step Solution
- Step 1: Write the proportion equation
129,446,775.40 : 194,170,163.10 = 119,593,028.20 : x - Step 2: Convert to fraction form
129,446,775.40/194,170,163.10 = 119,593,028.20/x - Step 3: Cross multiply
129,446,775.40x = 194,170,163.10 × 119,593,028.20 - Step 4: Simplify right side
129,446,775.40x = 23,221,397,791,216,900 - Step 5: Solve for x
x = 23,221,397,791,216,900/129,446,775.40 - Step 6: Final answer
x = 179,389,542.30
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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.