Finding the Fourth Proportional to 80,474,028.80, 120,711,043.20 and 29,357,715.20
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Solution
The fourth proportional to 80,474,028.80, 120,711,043.20 and 29,357,715.20 is: 44,036,572.80
Step by Step Solution
- Step 1: Write the proportion equation
80,474,028.80 : 120,711,043.20 = 29,357,715.20 : x - Step 2: Convert to fraction form
80,474,028.80/120,711,043.20 = 29,357,715.20/x - Step 3: Cross multiply
80,474,028.80x = 120,711,043.20 × 29,357,715.20 - Step 4: Simplify right side
80,474,028.80x = 3,543,800,427,760,496.50 - Step 5: Solve for x
x = 3,543,800,427,760,496.50/80,474,028.80 - Step 6: Final answer
x = 44,036,572.80
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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.