Finding the Fourth Proportional to 4,128,745.13, 6,193,117.69 and 1,289,100.59
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Solution
The fourth proportional to 4,128,745.13, 6,193,117.69 and 1,289,100.59 is: 1,933,650.88
Step by Step Solution
- Step 1: Write the proportion equation
4,128,745.13 : 6,193,117.69 = 1,289,100.59 : x - Step 2: Convert to fraction form
4,128,745.13/6,193,117.69 = 1,289,100.59/x - Step 3: Cross multiply
4,128,745.13x = 6,193,117.69 × 1,289,100.59 - Step 4: Simplify right side
4,128,745.13x = 7,983,551,664,405.48 - Step 5: Solve for x
x = 7,983,551,664,405.48/4,128,745.13 - Step 6: Final answer
x = 1,933,650.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.