Finding the Fourth Proportional to 713,637,758.21, 984,740,231.05 and 396,111,389.19
Calculator
Solution
The fourth proportional to 713,637,758.21, 984,740,231.05 and 396,111,389.19 is: 546,589,381.55
Step by Step Solution
- Step 1: Write the proportion equation
713,637,758.21 : 984,740,231.05 = 396,111,389.19 : x - Step 2: Convert to fraction form
713,637,758.21/984,740,231.05 = 396,111,389.19/x - Step 3: Cross multiply
713,637,758.21x = 984,740,231.05 × 396,111,389.19 - Step 4: Simplify right side
713,637,758.21x = 390,066,820,912,497,024 - Step 5: Solve for x
x = 390,066,820,912,497,024/713,637,758.21 - Step 6: Final answer
x = 546,589,381.55
Related Problems
Find fourth proportional to 356,818,879.11, 492,370,115.53 and 198,055,694.60
Half scale
Find fourth proportional to 1,427,275,516.42, 1,969,480,462.10 and 792,222,778.38
Double scale
Find fourth proportional to 713,637,759.21, 984,740,232.43 and 396,111,390.19
Similar ratio
Find fourth proportional to 1,070,456,637.32, 1,477,110,346.58 and 594,167,083.79
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.