Finding the Fourth Proportional to 3,179,445.74, 4,399,187.91 and 2,772,396.44
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Solution
The fourth proportional to 3,179,445.74, 4,399,187.91 and 2,772,396.44 is: 3,835,980.83
Step by Step Solution
- Step 1: Write the proportion equation
3,179,445.74 : 4,399,187.91 = 2,772,396.44 : x - Step 2: Convert to fraction form
3,179,445.74/4,399,187.91 = 2,772,396.44/x - Step 3: Cross multiply
3,179,445.74x = 4,399,187.91 × 2,772,396.44 - Step 4: Simplify right side
3,179,445.74x = 12,196,292,900,575.04 - Step 5: Solve for x
x = 12,196,292,900,575.04/3,179,445.74 - Step 6: Final answer
x = 3,835,980.83
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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.