Finding the Fourth Proportional to 20,800,830.70, 31,206,560.46 and 8,017,903.18
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Solution
The fourth proportional to 20,800,830.70, 31,206,560.46 and 8,017,903.18 is: 12,028,903.27
Step by Step Solution
- Step 1: Write the proportion equation
20,800,830.70 : 31,206,560.46 = 8,017,903.18 : x - Step 2: Convert to fraction form
20,800,830.70/31,206,560.46 = 8,017,903.18/x - Step 3: Cross multiply
20,800,830.70x = 31,206,560.46 × 8,017,903.18 - Step 4: Simplify right side
20,800,830.70x = 250,211,180,349,096.25 - Step 5: Solve for x
x = 250,211,180,349,096.25/20,800,830.70 - Step 6: Final answer
x = 12,028,903.27
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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.