Finding the Fourth Proportional to 484,785,128.20, 727,177,692.30 and 477,132,377.80
Calculator
Solution
The fourth proportional to 484,785,128.20, 727,177,692.30 and 477,132,377.80 is: 715,698,566.70
Step by Step Solution
- Step 1: Write the proportion equation
484,785,128.20 : 727,177,692.30 = 477,132,377.80 : x - Step 2: Convert to fraction form
484,785,128.20/727,177,692.30 = 477,132,377.80/x - Step 3: Cross multiply
484,785,128.20x = 727,177,692.30 × 477,132,377.80 - Step 4: Simplify right side
484,785,128.20x = 346,960,021,410,215,744 - Step 5: Solve for x
x = 346,960,021,410,215,744/484,785,128.20 - Step 6: Final answer
x = 715,698,566.70
Related Problems
Find fourth proportional to 242,392,564.10, 363,588,846.15 and 238,566,188.90
Half scale
Find fourth proportional to 969,570,256.40, 1,454,355,384.60 and 954,264,755.60
Double scale
Find fourth proportional to 484,785,129.20, 727,177,693.80 and 477,132,378.80
Similar ratio
Find fourth proportional to 727,177,692.30, 1,090,766,538.45 and 715,698,566.70
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.