Finding the Fourth Proportional to 96,775,713.60, 145,163,570.40 and 85,438,305.60
Calculator
Solution
The fourth proportional to 96,775,713.60, 145,163,570.40 and 85,438,305.60 is: 128,157,458.40
Step by Step Solution
- Step 1: Write the proportion equation
96,775,713.60 : 145,163,570.40 = 85,438,305.60 : x - Step 2: Convert to fraction form
96,775,713.60/145,163,570.40 = 85,438,305.60/x - Step 3: Cross multiply
96,775,713.60x = 145,163,570.40 × 85,438,305.60 - Step 4: Simplify right side
96,775,713.60x = 12,402,529,489,822,314 - Step 5: Solve for x
x = 12,402,529,489,822,314/96,775,713.60 - Step 6: Final answer
x = 128,157,458.40
Related Problems
Find fourth proportional to 48,387,856.80, 72,581,785.20 and 42,719,152.80
Half scale
Find fourth proportional to 193,551,427.20, 290,327,140.80 and 170,876,611.20
Double scale
Find fourth proportional to 96,775,714.60, 145,163,571.90 and 85,438,306.60
Similar ratio
Find fourth proportional to 145,163,570.40, 217,745,355.60 and 128,157,458.40
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.