Finding the Fourth Proportional to 734,831,998.40, 1,102,247,997.60 and 298,341,790.40
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Solution
The fourth proportional to 734,831,998.40, 1,102,247,997.60 and 298,341,790.40 is: 447,512,685.60
Step by Step Solution
- Step 1: Write the proportion equation
734,831,998.40 : 1,102,247,997.60 = 298,341,790.40 : x - Step 2: Convert to fraction form
734,831,998.40/1,102,247,997.60 = 298,341,790.40/x - Step 3: Cross multiply
734,831,998.40x = 1,102,247,997.60 × 298,341,790.40 - Step 4: Simplify right side
734,831,998.40x = 328,846,641,068,798,848 - Step 5: Solve for x
x = 328,846,641,068,798,848/734,831,998.40 - Step 6: Final answer
x = 447,512,685.60
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Double scale
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Similar ratio
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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.