Finding the Fourth Proportional to 801,414,967.80, 1,202,122,451.70 and 393,268,279.80
Calculator
Solution
The fourth proportional to 801,414,967.80, 1,202,122,451.70 and 393,268,279.80 is: 589,902,419.70
Step by Step Solution
- Step 1: Write the proportion equation
801,414,967.80 : 1,202,122,451.70 = 393,268,279.80 : x - Step 2: Convert to fraction form
801,414,967.80/1,202,122,451.70 = 393,268,279.80/x - Step 3: Cross multiply
801,414,967.80x = 1,202,122,451.70 × 393,268,279.80 - Step 4: Simplify right side
801,414,967.80x = 472,756,628,689,017,600 - Step 5: Solve for x
x = 472,756,628,689,017,600/801,414,967.80 - Step 6: Final answer
x = 589,902,419.70
Related Problems
Find fourth proportional to 400,707,483.90, 601,061,225.85 and 196,634,139.90
Half scale
Find fourth proportional to 1,602,829,935.60, 2,404,244,903.40 and 786,536,559.60
Double scale
Find fourth proportional to 801,414,968.80, 1,202,122,453.20 and 393,268,280.80
Similar ratio
Find fourth proportional to 1,202,122,451.70, 1,803,183,677.55 and 589,902,419.70
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.