Finding the Fourth Proportional to 8,129,963.28, 12,199,668.84 and 3,642,239.28
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Solution
The fourth proportional to 8,129,963.28, 12,199,668.84 and 3,642,239.28 is: 5,465,475.25
Step by Step Solution
- Step 1: Write the proportion equation
8,129,963.28 : 12,199,668.84 = 3,642,239.28 : x - Step 2: Convert to fraction form
8,129,963.28/12,199,668.84 = 3,642,239.28/x - Step 3: Cross multiply
8,129,963.28x = 12,199,668.84 × 3,642,239.28 - Step 4: Simplify right side
8,129,963.28x = 44,434,113,052,040.03 - Step 5: Solve for x
x = 44,434,113,052,040.03/8,129,963.28 - Step 6: Final answer
x = 5,465,475.25
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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.