Finding the Fourth Proportional to 186,624,409.40, 279,936,614.10 and 128,173,772.60
Calculator
Solution
The fourth proportional to 186,624,409.40, 279,936,614.10 and 128,173,772.60 is: 192,260,658.90
Step by Step Solution
- Step 1: Write the proportion equation
186,624,409.40 : 279,936,614.10 = 128,173,772.60 : x - Step 2: Convert to fraction form
186,624,409.40/279,936,614.10 = 128,173,772.60/x - Step 3: Cross multiply
186,624,409.40x = 279,936,614.10 × 128,173,772.60 - Step 4: Simplify right side
186,624,409.40x = 35,880,531,918,067,356 - Step 5: Solve for x
x = 35,880,531,918,067,356/186,624,409.40 - Step 6: Final answer
x = 192,260,658.90
Related Problems
Find fourth proportional to 93,312,204.70, 139,968,307.05 and 64,086,886.30
Half scale
Find fourth proportional to 373,248,818.80, 559,873,228.20 and 256,347,545.20
Double scale
Find fourth proportional to 186,624,410.40, 279,936,615.60 and 128,173,773.60
Similar ratio
Find fourth proportional to 279,936,614.10, 419,904,921.15 and 192,260,658.90
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.