Finding the Fourth Proportional to 456,236,413.80, 684,354,620.70 and 429,362,557.80
Calculator
Solution
The fourth proportional to 456,236,413.80, 684,354,620.70 and 429,362,557.80 is: 644,043,836.70
Step by Step Solution
- Step 1: Write the proportion equation
456,236,413.80 : 684,354,620.70 = 429,362,557.80 : x - Step 2: Convert to fraction form
456,236,413.80/684,354,620.70 = 429,362,557.80/x - Step 3: Cross multiply
456,236,413.80x = 684,354,620.70 × 429,362,557.80 - Step 4: Simplify right side
456,236,413.80x = 293,836,250,386,000,832 - Step 5: Solve for x
x = 293,836,250,386,000,832/456,236,413.80 - Step 6: Final answer
x = 644,043,836.70
Related Problems
Find fourth proportional to 228,118,206.90, 342,177,310.35 and 214,681,278.90
Half scale
Find fourth proportional to 912,472,827.60, 1,368,709,241.40 and 858,725,115.60
Double scale
Find fourth proportional to 456,236,414.80, 684,354,622.20 and 429,362,558.80
Similar ratio
Find fourth proportional to 684,354,620.70, 1,026,531,931.05 and 644,043,836.70
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.