Finding the Fourth Proportional to 300,389,657.05, 449,777,195.49 and 190,620,518.50
Calculator
Solution
The fourth proportional to 300,389,657.05, 449,777,195.49 and 190,620,518.50 is: 285,418,489.62
Step by Step Solution
- Step 1: Write the proportion equation
300,389,657.05 : 449,777,195.49 = 190,620,518.50 : x - Step 2: Convert to fraction form
300,389,657.05/449,777,195.49 = 190,620,518.50/x - Step 3: Cross multiply
300,389,657.05x = 449,777,195.49 × 190,620,518.50 - Step 4: Simplify right side
300,389,657.05x = 85,736,762,213,779,664 - Step 5: Solve for x
x = 85,736,762,213,779,664/300,389,657.05 - Step 6: Final answer
x = 285,418,489.62
Related Problems
Find fourth proportional to 150,194,828.53, 224,888,597.75 and 95,310,259.25
Half scale
Find fourth proportional to 600,779,314.10, 899,554,390.98 and 381,241,037
Double scale
Find fourth proportional to 300,389,658.05, 449,777,196.99 and 190,620,519.50
Similar ratio
Find fourth proportional to 450,584,485.58, 674,665,793.24 and 285,930,777.75
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.