Finding the Fourth Proportional to 89,688,742.90, 134,533,114.35 and 81,752,557.30
Calculator
Solution
The fourth proportional to 89,688,742.90, 134,533,114.35 and 81,752,557.30 is: 122,628,835.95
Step by Step Solution
- Step 1: Write the proportion equation
89,688,742.90 : 134,533,114.35 = 81,752,557.30 : x - Step 2: Convert to fraction form
89,688,742.90/134,533,114.35 = 81,752,557.30/x - Step 3: Cross multiply
89,688,742.90x = 134,533,114.35 × 81,752,557.30 - Step 4: Simplify right side
89,688,742.90x = 10,998,426,139,645,826 - Step 5: Solve for x
x = 10,998,426,139,645,826/89,688,742.90 - Step 6: Final answer
x = 122,628,835.95
Related Problems
Find fourth proportional to 44,844,371.45, 67,266,557.18 and 40,876,278.65
Half scale
Find fourth proportional to 179,377,485.80, 269,066,228.70 and 163,505,114.60
Double scale
Find fourth proportional to 89,688,743.90, 134,533,115.85 and 81,752,558.30
Similar ratio
Find fourth proportional to 134,533,114.35, 201,799,671.53 and 122,628,835.95
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.