Finding the Fourth Proportional to 12,418,288,163.70, 18,627,432,245.55 and 9,969,408,035.70
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Solution
The fourth proportional to 12,418,288,163.70, 18,627,432,245.55 and 9,969,408,035.70 is: 14,954,112,053.55
Step by Step Solution
- Step 1: Write the proportion equation
12,418,288,163.70 : 18,627,432,245.55 = 9,969,408,035.70 : x - Step 2: Convert to fraction form
12,418,288,163.70/18,627,432,245.55 = 9,969,408,035.70/x - Step 3: Cross multiply
12,418,288,163.70x = 18,627,432,245.55 × 9,969,408,035.70 - Step 4: Simplify right side
12,418,288,163.70x = 185,704,472,713,243,459,584 - Step 5: Solve for x
x = 185,704,472,713,243,459,584/12,418,288,163.70 - Step 6: Final answer
x = 14,954,112,053.55
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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.