Finding the Fourth Proportional to 18,220,438.80, 27,330,658.20 and 4,757,266.80
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Solution
The fourth proportional to 18,220,438.80, 27,330,658.20 and 4,757,266.80 is: 7,135,900.20
Step by Step Solution
- Step 1: Write the proportion equation
18,220,438.80 : 27,330,658.20 = 4,757,266.80 : x - Step 2: Convert to fraction form
18,220,438.80/27,330,658.20 = 4,757,266.80/x - Step 3: Cross multiply
18,220,438.80x = 27,330,658.20 × 4,757,266.80 - Step 4: Simplify right side
18,220,438.80x = 130,019,232,877,007.75 - Step 5: Solve for x
x = 130,019,232,877,007.75/18,220,438.80 - Step 6: Final answer
x = 7,135,900.20
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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.