Finding the Fourth Proportional to 10,417,620.80, 15,626,431.20 and 3,686,715.20
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Solution
The fourth proportional to 10,417,620.80, 15,626,431.20 and 3,686,715.20 is: 5,530,072.80
Step by Step Solution
- Step 1: Write the proportion equation
10,417,620.80 : 15,626,431.20 = 3,686,715.20 : x - Step 2: Convert to fraction form
10,417,620.80/15,626,431.20 = 3,686,715.20/x - Step 3: Cross multiply
10,417,620.80x = 15,626,431.20 × 3,686,715.20 - Step 4: Simplify right side
10,417,620.80x = 57,610,201,426,794.24 - Step 5: Solve for x
x = 57,610,201,426,794.24/10,417,620.80 - Step 6: Final answer
x = 5,530,072.80
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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.