Finding the Fourth Proportional to 75,286,108.80, 112,929,163.20 and 44,978,371.20
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Solution
The fourth proportional to 75,286,108.80, 112,929,163.20 and 44,978,371.20 is: 67,467,556.80
Step by Step Solution
- Step 1: Write the proportion equation
75,286,108.80 : 112,929,163.20 = 44,978,371.20 : x - Step 2: Convert to fraction form
75,286,108.80/112,929,163.20 = 44,978,371.20/x - Step 3: Cross multiply
75,286,108.80x = 112,929,163.20 × 44,978,371.20 - Step 4: Simplify right side
75,286,108.80x = 5,079,369,821,714,980 - Step 5: Solve for x
x = 5,079,369,821,714,980/75,286,108.80 - Step 6: Final answer
x = 67,467,556.80
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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.