Finding the Fourth Proportional to 3,779,149,816.40, 5,668,724,724.60 and 1,942,489,720.40
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Solution
The fourth proportional to 3,779,149,816.40, 5,668,724,724.60 and 1,942,489,720.40 is: 2,913,734,580.60
Step by Step Solution
- Step 1: Write the proportion equation
3,779,149,816.40 : 5,668,724,724.60 = 1,942,489,720.40 : x - Step 2: Convert to fraction form
3,779,149,816.40/5,668,724,724.60 = 1,942,489,720.40/x - Step 3: Cross multiply
3,779,149,816.40x = 5,668,724,724.60 × 1,942,489,720.40 - Step 4: Simplify right side
3,779,149,816.40x = 11,011,439,505,312,823,296 - Step 5: Solve for x
x = 11,011,439,505,312,823,296/3,779,149,816.40 - Step 6: Final answer
x = 2,913,734,580.60
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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.