Finding the Fourth Proportional to 3,144,134.99, 4,338,619.97 and 1,819,329.72
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Solution
The fourth proportional to 3,144,134.99, 4,338,619.97 and 1,819,329.72 is: 2,510,509.34
Step by Step Solution
- Step 1: Write the proportion equation
3,144,134.99 : 4,338,619.97 = 1,819,329.72 : x - Step 2: Convert to fraction form
3,144,134.99/4,338,619.97 = 1,819,329.72/x - Step 3: Cross multiply
3,144,134.99x = 4,338,619.97 × 1,819,329.72 - Step 4: Simplify right side
3,144,134.99x = 7,893,380,246,109.86 - Step 5: Solve for x
x = 7,893,380,246,109.86/3,144,134.99 - Step 6: Final answer
x = 2,510,509.34
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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.