Finding the Fourth Proportional to 3,987,356.44, 5,502,481.68 and 2,268,440.32
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Solution
The fourth proportional to 3,987,356.44, 5,502,481.68 and 2,268,440.32 is: 3,130,407.70
Step by Step Solution
- Step 1: Write the proportion equation
3,987,356.44 : 5,502,481.68 = 2,268,440.32 : x - Step 2: Convert to fraction form
3,987,356.44/5,502,481.68 = 2,268,440.32/x - Step 3: Cross multiply
3,987,356.44x = 5,502,481.68 × 2,268,440.32 - Step 4: Simplify right side
3,987,356.44x = 12,482,051,302,973.34 - Step 5: Solve for x
x = 12,482,051,302,973.34/3,987,356.44 - Step 6: Final answer
x = 3,130,407.70
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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.