Finding the Fourth Proportional to 6,126,378.72, 9,189,570.24 and 2,756,649.12
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Solution
The fourth proportional to 6,126,378.72, 9,189,570.24 and 2,756,649.12 is: 4,134,974.65
Step by Step Solution
- Step 1: Write the proportion equation
6,126,378.72 : 9,189,570.24 = 2,756,649.12 : x - Step 2: Convert to fraction form
6,126,378.72/9,189,570.24 = 2,756,649.12/x - Step 3: Cross multiply
6,126,378.72x = 9,189,570.24 × 2,756,649.12 - Step 4: Simplify right side
6,126,378.72x = 25,332,420,715,274.19 - Step 5: Solve for x
x = 25,332,420,715,274.19/6,126,378.72 - Step 6: Final answer
x = 4,134,974.65
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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.