Finding the Fourth Proportional to 262,386,037.80, 393,012,186.30 and 217,036,405.80
Calculator
Solution
The fourth proportional to 262,386,037.80, 393,012,186.30 and 217,036,405.80 is: 325,085,713.65
Step by Step Solution
- Step 1: Write the proportion equation
262,386,037.80 : 393,012,186.30 = 217,036,405.80 : x - Step 2: Convert to fraction form
262,386,037.80/393,012,186.30 = 217,036,405.80/x - Step 3: Cross multiply
262,386,037.80x = 393,012,186.30 × 217,036,405.80 - Step 4: Simplify right side
262,386,037.80x = 85,297,952,350,152,000 - Step 5: Solve for x
x = 85,297,952,350,152,000/262,386,037.80 - Step 6: Final answer
x = 325,085,713.65
Related Problems
Find fourth proportional to 131,193,018.90, 196,506,093.15 and 108,518,202.90
Half scale
Find fourth proportional to 524,772,075.60, 786,024,372.60 and 434,072,811.60
Double scale
Find fourth proportional to 262,386,038.80, 393,012,187.80 and 217,036,406.80
Similar ratio
Find fourth proportional to 393,579,056.70, 589,518,279.45 and 325,554,608.70
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.