Finding the Fourth Proportional to 128,736,122.10, 193,104,183.15 and 114,627,347.70
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Solution
The fourth proportional to 128,736,122.10, 193,104,183.15 and 114,627,347.70 is: 171,941,021.55
Step by Step Solution
- Step 1: Write the proportion equation
128,736,122.10 : 193,104,183.15 = 114,627,347.70 : x - Step 2: Convert to fraction form
128,736,122.10/193,104,183.15 = 114,627,347.70/x - Step 3: Cross multiply
128,736,122.10x = 193,104,183.15 × 114,627,347.70 - Step 4: Simplify right side
128,736,122.10x = 22,135,020,344,259,532 - Step 5: Solve for x
x = 22,135,020,344,259,532/128,736,122.10 - Step 6: Final answer
x = 171,941,021.55
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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.