Finding the Fourth Proportional to 6,122,403.60, 9,173,107.80 and 3,991,390.80
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Solution
The fourth proportional to 6,122,403.60, 9,173,107.80 and 3,991,390.80 is: 5,980,242.48
Step by Step Solution
- Step 1: Write the proportion equation
6,122,403.60 : 9,173,107.80 = 3,991,390.80 : x - Step 2: Convert to fraction form
6,122,403.60/9,173,107.80 = 3,991,390.80/x - Step 3: Cross multiply
6,122,403.60x = 9,173,107.80 × 3,991,390.80 - Step 4: Simplify right side
6,122,403.60x = 36,613,458,080,328.24 - Step 5: Solve for x
x = 36,613,458,080,328.24/6,122,403.60 - Step 6: Final answer
x = 5,980,242.48
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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.