Finding the Fourth Proportional to 6,315,101.60, 9,466,431.60 and 3,120,720.80
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Solution
The fourth proportional to 6,315,101.60, 9,466,431.60 and 3,120,720.80 is: 4,678,007.08
Step by Step Solution
- Step 1: Write the proportion equation
6,315,101.60 : 9,466,431.60 = 3,120,720.80 : x - Step 2: Convert to fraction form
6,315,101.60/9,466,431.60 = 3,120,720.80/x - Step 3: Cross multiply
6,315,101.60x = 9,466,431.60 × 3,120,720.80 - Step 4: Simplify right side
6,315,101.60x = 29,542,089,995,897.28 - Step 5: Solve for x
x = 29,542,089,995,897.28/6,315,101.60 - Step 6: Final answer
x = 4,678,007.08
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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.