Finding the Fourth Proportional to 3,900,400.44, 5,380,386.30 and 2,268,624.12
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Solution
The fourth proportional to 3,900,400.44, 5,380,386.30 and 2,268,624.12 is: 3,129,441.28
Step by Step Solution
- Step 1: Write the proportion equation
3,900,400.44 : 5,380,386.30 = 2,268,624.12 : x - Step 2: Convert to fraction form
3,900,400.44/5,380,386.30 = 2,268,624.12/x - Step 3: Cross multiply
3,900,400.44x = 5,380,386.30 × 2,268,624.12 - Step 4: Simplify right side
3,900,400.44x = 12,206,074,135,097.56 - Step 5: Solve for x
x = 12,206,074,135,097.56/3,900,400.44 - Step 6: Final answer
x = 3,129,441.28
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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.