Finding the Fourth Proportional to 55,149,745.20, 82,724,617.80 and 16,811,197.80
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Solution
The fourth proportional to 55,149,745.20, 82,724,617.80 and 16,811,197.80 is: 25,216,796.70
Step by Step Solution
- Step 1: Write the proportion equation
55,149,745.20 : 82,724,617.80 = 16,811,197.80 : x - Step 2: Convert to fraction form
55,149,745.20/82,724,617.80 = 16,811,197.80/x - Step 3: Cross multiply
55,149,745.20x = 82,724,617.80 × 16,811,197.80 - Step 4: Simplify right side
55,149,745.20x = 1,390,699,912,765,200.75 - Step 5: Solve for x
x = 1,390,699,912,765,200.75/55,149,745.20 - Step 6: Final answer
x = 25,216,796.70
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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.