Finding the Fourth Proportional to 3,151,725.35, 4,378,743.88 and 3,113,933.99
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Solution
The fourth proportional to 3,151,725.35, 4,378,743.88 and 3,113,933.99 is: 4,326,239.72
Step by Step Solution
- Step 1: Write the proportion equation
3,151,725.35 : 4,378,743.88 = 3,113,933.99 : x - Step 2: Convert to fraction form
3,151,725.35/4,378,743.88 = 3,113,933.99/x - Step 3: Cross multiply
3,151,725.35x = 4,378,743.88 × 3,113,933.99 - Step 4: Simplify right side
3,151,725.35x = 13,635,119,371,757.93 - Step 5: Solve for x
x = 13,635,119,371,757.93/3,151,725.35 - Step 6: Final answer
x = 4,326,239.72
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.