Finding the Fourth Proportional to 55,188,135.20, 82,782,202.80 and 18,784,426.70
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Solution
The fourth proportional to 55,188,135.20, 82,782,202.80 and 18,784,426.70 is: 28,176,640.05
Step by Step Solution
- Step 1: Write the proportion equation
55,188,135.20 : 82,782,202.80 = 18,784,426.70 : x - Step 2: Convert to fraction form
55,188,135.20/82,782,202.80 = 18,784,426.70/x - Step 3: Cross multiply
55,188,135.20x = 82,782,202.80 × 18,784,426.70 - Step 4: Simplify right side
55,188,135.20x = 1,555,016,220,561,134.75 - Step 5: Solve for x
x = 1,555,016,220,561,134.75/55,188,135.20 - Step 6: Final answer
x = 28,176,640.05
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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.