Finding the Fourth Proportional to 440,122,417.70, 660,183,626.55 and 210,539,905.70
Calculator
Solution
The fourth proportional to 440,122,417.70, 660,183,626.55 and 210,539,905.70 is: 315,809,858.55
Step by Step Solution
- Step 1: Write the proportion equation
440,122,417.70 : 660,183,626.55 = 210,539,905.70 : x - Step 2: Convert to fraction form
440,122,417.70/660,183,626.55 = 210,539,905.70/x - Step 3: Cross multiply
440,122,417.70x = 660,183,626.55 × 210,539,905.70 - Step 4: Simplify right side
440,122,417.70x = 138,994,998,478,520,992 - Step 5: Solve for x
x = 138,994,998,478,520,992/440,122,417.70 - Step 6: Final answer
x = 315,809,858.55
Related Problems
Find fourth proportional to 220,061,208.85, 330,091,813.28 and 105,269,952.85
Half scale
Find fourth proportional to 880,244,835.40, 1,320,367,253.10 and 421,079,811.40
Double scale
Find fourth proportional to 440,122,418.70, 660,183,628.05 and 210,539,906.70
Similar ratio
Find fourth proportional to 660,183,626.55, 990,275,439.83 and 315,809,858.55
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.