Finding the Fourth Proportional to 323,524,108.80, 485,286,163.20 and 305,667,691.20
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Solution
The fourth proportional to 323,524,108.80, 485,286,163.20 and 305,667,691.20 is: 458,501,536.80
Step by Step Solution
- Step 1: Write the proportion equation
323,524,108.80 : 485,286,163.20 = 305,667,691.20 : x - Step 2: Convert to fraction form
323,524,108.80/485,286,163.20 = 305,667,691.20/x - Step 3: Cross multiply
323,524,108.80x = 485,286,163.20 × 305,667,691.20 - Step 4: Simplify right side
323,524,108.80x = 148,336,301,076,650,400 - Step 5: Solve for x
x = 148,336,301,076,650,400/323,524,108.80 - Step 6: Final answer
x = 458,501,536.80
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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.