Finding the Fourth Proportional to 5,433,749.28, 7,498,742.67 and 2,986,315.92
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Solution
The fourth proportional to 5,433,749.28, 7,498,742.67 and 2,986,315.92 is: 4,121,208.66
Step by Step Solution
- Step 1: Write the proportion equation
5,433,749.28 : 7,498,742.67 = 2,986,315.92 : x - Step 2: Convert to fraction form
5,433,749.28/7,498,742.67 = 2,986,315.92/x - Step 3: Cross multiply
5,433,749.28x = 7,498,742.67 × 2,986,315.92 - Step 4: Simplify right side
5,433,749.28x = 22,393,614,615,404.30 - Step 5: Solve for x
x = 22,393,614,615,404.30/5,433,749.28 - Step 6: Final answer
x = 4,121,208.66
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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.