Finding the Fourth Proportional to 19,486,586.80, 29,229,880.20 and 5,303,162.80
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Solution
The fourth proportional to 19,486,586.80, 29,229,880.20 and 5,303,162.80 is: 7,954,744.20
Step by Step Solution
- Step 1: Write the proportion equation
19,486,586.80 : 29,229,880.20 = 5,303,162.80 : x - Step 2: Convert to fraction form
19,486,586.80/29,229,880.20 = 5,303,162.80/x - Step 3: Cross multiply
19,486,586.80x = 29,229,880.20 × 5,303,162.80 - Step 4: Simplify right side
19,486,586.80x = 155,010,813,325,096.56 - Step 5: Solve for x
x = 155,010,813,325,096.56/19,486,586.80 - Step 6: Final answer
x = 7,954,744.20
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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.