Finding the Fourth Proportional to 121,407,190.70, 170,352,704.50 and 121,407,190.70
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Solution
The fourth proportional to 121,407,190.70, 170,352,704.50 and 121,407,190.70 is: 170,352,704.50
Step by Step Solution
- Step 1: Write the proportion equation
121,407,190.70 : 170,352,704.50 = 121,407,190.70 : x - Step 2: Convert to fraction form
121,407,190.70/170,352,704.50 = 121,407,190.70/x - Step 3: Cross multiply
121,407,190.70x = 170,352,704.50 × 121,407,190.70 - Step 4: Simplify right side
121,407,190.70x = 20,682,043,281,492,248 - Step 5: Solve for x
x = 20,682,043,281,492,248/121,407,190.70 - Step 6: Final answer
x = 170,352,704.50
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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.