Finding the Fourth Proportional to 3,779,142,919.20, 5,668,714,378.80 and 1,325,160,957.60
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Solution
The fourth proportional to 3,779,142,919.20, 5,668,714,378.80 and 1,325,160,957.60 is: 1,987,741,436.40
Step by Step Solution
- Step 1: Write the proportion equation
3,779,142,919.20 : 5,668,714,378.80 = 1,325,160,957.60 : x - Step 2: Convert to fraction form
3,779,142,919.20/5,668,714,378.80 = 1,325,160,957.60/x - Step 3: Cross multiply
3,779,142,919.20x = 5,668,714,378.80 × 1,325,160,957.60 - Step 4: Simplify right side
3,779,142,919.20x = 7,511,958,974,571,496,448 - Step 5: Solve for x
x = 7,511,958,974,571,496,448/3,779,142,919.20 - Step 6: Final answer
x = 1,987,741,436.40
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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.