Finding the Fourth Proportional to 3,173,963.14, 4,381,409.39 and 2,142,867.05
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Solution
The fourth proportional to 3,173,963.14, 4,381,409.39 and 2,142,867.05 is: 2,958,061.40
Step by Step Solution
- Step 1: Write the proportion equation
3,173,963.14 : 4,381,409.39 = 2,142,867.05 : x - Step 2: Convert to fraction form
3,173,963.14/4,381,409.39 = 2,142,867.05/x - Step 3: Cross multiply
3,173,963.14x = 4,381,409.39 × 2,142,867.05 - Step 4: Simplify right side
3,173,963.14x = 9,388,777,834,899.56 - Step 5: Solve for x
x = 9,388,777,834,899.56/3,173,963.14 - Step 6: Final answer
x = 2,958,061.40
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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.