Finding the Fourth Proportional to 84,075,907.80, 126,113,861.70 and 84,075,907.80
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Solution
The fourth proportional to 84,075,907.80, 126,113,861.70 and 84,075,907.80 is: 126,113,861.70
Step by Step Solution
- Step 1: Write the proportion equation
84,075,907.80 : 126,113,861.70 = 84,075,907.80 : x - Step 2: Convert to fraction form
84,075,907.80/126,113,861.70 = 84,075,907.80/x - Step 3: Cross multiply
84,075,907.80x = 126,113,861.70 × 84,075,907.80 - Step 4: Simplify right side
84,075,907.80x = 10,603,137,408,591,152 - Step 5: Solve for x
x = 10,603,137,408,591,152/84,075,907.80 - Step 6: Final answer
x = 126,113,861.70
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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.