Finding the Fourth Proportional to 7,518,516.99, 10,375,561.13 and 4,080,758.73
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Solution
The fourth proportional to 7,518,516.99, 10,375,561.13 and 4,080,758.73 is: 5,631,451.22
Step by Step Solution
- Step 1: Write the proportion equation
7,518,516.99 : 10,375,561.13 = 4,080,758.73 : x - Step 2: Convert to fraction form
7,518,516.99/10,375,561.13 = 4,080,758.73/x - Step 3: Cross multiply
7,518,516.99x = 10,375,561.13 × 4,080,758.73 - Step 4: Simplify right side
7,518,516.99x = 42,340,161,659,896.17 - Step 5: Solve for x
x = 42,340,161,659,896.17/7,518,516.99 - Step 6: Final answer
x = 5,631,451.22
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1.5x scale
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.