Finding the Fourth Proportional to 11,278,080.37, 15,563,334.16 and 6,121,331.20
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Solution
The fourth proportional to 11,278,080.37, 15,563,334.16 and 6,121,331.20 is: 8,447,210.86
Step by Step Solution
- Step 1: Write the proportion equation
11,278,080.37 : 15,563,334.16 = 6,121,331.20 : x - Step 2: Convert to fraction form
11,278,080.37/15,563,334.16 = 6,121,331.20/x - Step 3: Cross multiply
11,278,080.37x = 15,563,334.16 × 6,121,331.20 - Step 4: Simplify right side
11,278,080.37x = 95,268,322,996,739.62 - Step 5: Solve for x
x = 95,268,322,996,739.62/11,278,080.37 - Step 6: Final answer
x = 8,447,210.86
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.