Finding the Fourth Proportional to 3,719,675.41, 5,131,685.16 and 2,148,768.99
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Solution
The fourth proportional to 3,719,675.41, 5,131,685.16 and 2,148,768.99 is: 2,964,453.81
Step by Step Solution
- Step 1: Write the proportion equation
3,719,675.41 : 5,131,685.16 = 2,148,768.99 : x - Step 2: Convert to fraction form
3,719,675.41/5,131,685.16 = 2,148,768.99/x - Step 3: Cross multiply
3,719,675.41x = 5,131,685.16 × 2,148,768.99 - Step 4: Simplify right side
3,719,675.41x = 11,026,805,938,251.19 - Step 5: Solve for x
x = 11,026,805,938,251.19/3,719,675.41 - Step 6: Final answer
x = 2,964,453.81
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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.