Finding the Fourth Proportional to 18,662,988, 27,994,482.36 and 4,479,564
Calculator
Solution
The fourth proportional to 18,662,988, 27,994,482.36 and 4,479,564 is: 6,719,346.09
Step by Step Solution
- Step 1: Write the proportion equation
18,662,988 : 27,994,482.36 = 4,479,564 : x - Step 2: Convert to fraction form
18,662,988/27,994,482.36 = 4,479,564/x - Step 3: Cross multiply
18,662,988x = 27,994,482.36 × 4,479,564 - Step 4: Simplify right side
18,662,988x = 125,403,075,378,491.03 - Step 5: Solve for x
x = 125,403,075,378,491.03/18,662,988 - Step 6: Final answer
x = 6,719,346.09
Related Problems
Find fourth proportional to 9,331,494, 13,997,241.18 and 2,239,782
Half scale
Find fourth proportional to 37,325,976, 55,988,964.72 and 8,959,128
Double scale
Find fourth proportional to 18,662,989, 27,994,483.86 and 4,479,565
Similar ratio
Find fourth proportional to 27,994,482, 41,991,723.54 and 6,719,346
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.