Finding the Fourth Proportional to 80,801,075.80, 121,201,613.70 and 40,396,979.80
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Solution
The fourth proportional to 80,801,075.80, 121,201,613.70 and 40,396,979.80 is: 60,595,469.70
Step by Step Solution
- Step 1: Write the proportion equation
80,801,075.80 : 121,201,613.70 = 40,396,979.80 : x - Step 2: Convert to fraction form
80,801,075.80/121,201,613.70 = 40,396,979.80/x - Step 3: Cross multiply
80,801,075.80x = 121,201,613.70 × 40,396,979.80 - Step 4: Simplify right side
80,801,075.80x = 4,896,179,140,366,303 - Step 5: Solve for x
x = 4,896,179,140,366,303/80,801,075.80 - Step 6: Final answer
x = 60,595,469.70
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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.