Finding the Fourth Proportional to 314,929,129.80, 439,880,415 and 314,929,129.80
Calculator
Solution
The fourth proportional to 314,929,129.80, 439,880,415 and 314,929,129.80 is: 439,880,415
Step by Step Solution
- Step 1: Write the proportion equation
314,929,129.80 : 439,880,415 = 314,929,129.80 : x - Step 2: Convert to fraction form
314,929,129.80/439,880,415 = 314,929,129.80/x - Step 3: Cross multiply
314,929,129.80x = 439,880,415 × 314,929,129.80 - Step 4: Simplify right side
314,929,129.80x = 138,531,156,312,012,880 - Step 5: Solve for x
x = 138,531,156,312,012,880/314,929,129.80 - Step 6: Final answer
x = 439,880,415
Related Problems
Find fourth proportional to 157,464,564.90, 219,940,207.50 and 157,464,564.90
Half scale
Find fourth proportional to 629,858,259.60, 879,760,830 and 629,858,259.60
Double scale
Find fourth proportional to 314,929,130.80, 439,880,416.40 and 314,929,130.80
Similar ratio
Find fourth proportional to 472,393,694.70, 659,820,622.50 and 472,393,694.70
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.