Finding the Fourth Proportional to 3,987,354.44, 5,502,478.92 and 2,268,438.32
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Solution
The fourth proportional to 3,987,354.44, 5,502,478.92 and 2,268,438.32 is: 3,130,404.94
Step by Step Solution
- Step 1: Write the proportion equation
3,987,354.44 : 5,502,478.92 = 2,268,438.32 : x - Step 2: Convert to fraction form
3,987,354.44/5,502,478.92 = 2,268,438.32/x - Step 3: Cross multiply
3,987,354.44x = 5,502,478.92 × 2,268,438.32 - Step 4: Simplify right side
3,987,354.44x = 12,482,034,037,120.21 - Step 5: Solve for x
x = 12,482,034,037,120.21/3,987,354.44 - Step 6: Final answer
x = 3,130,404.94
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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.