Finding the Fourth Proportional to 196,289,896.11, 270,890,709.20 and 112,657,358.09
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Solution
The fourth proportional to 196,289,896.11, 270,890,709.20 and 112,657,358.09 is: 155,473,268.02
Step by Step Solution
- Step 1: Write the proportion equation
196,289,896.11 : 270,890,709.20 = 112,657,358.09 : x - Step 2: Convert to fraction form
196,289,896.11/270,890,709.20 = 112,657,358.09/x - Step 3: Cross multiply
196,289,896.11x = 270,890,709.20 × 112,657,358.09 - Step 4: Simplify right side
196,289,896.11x = 30,517,831,627,680,716 - Step 5: Solve for x
x = 30,517,831,627,680,716/196,289,896.11 - Step 6: Final answer
x = 155,473,268.02
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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.