Finding the Fourth Proportional to 3,883,381,408.40, 5,825,242,147.80 and 1,123,289,430.80
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Solution
The fourth proportional to 3,883,381,408.40, 5,825,242,147.80 and 1,123,289,430.80 is: 1,684,983,329.82
Step by Step Solution
- Step 1: Write the proportion equation
3,883,381,408.40 : 5,825,242,147.80 = 1,123,289,430.80 : x - Step 2: Convert to fraction form
3,883,381,408.40/5,825,242,147.80 = 1,123,289,430.80/x - Step 3: Cross multiply
3,883,381,408.40x = 5,825,242,147.80 × 1,123,289,430.80 - Step 4: Simplify right side
3,883,381,408.40x = 6,543,432,936,474,431,488 - Step 5: Solve for x
x = 6,543,432,936,474,431,488/3,883,381,408.40 - Step 6: Final answer
x = 1,684,983,329.82
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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.