Finding the Fourth Proportional to 5,205,803.46, 7,808,475.15 and 1,419,286.74
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Solution
The fourth proportional to 5,205,803.46, 7,808,475.15 and 1,419,286.74 is: 2,128,867.39
Step by Step Solution
- Step 1: Write the proportion equation
5,205,803.46 : 7,808,475.15 = 1,419,286.74 : x - Step 2: Convert to fraction form
5,205,803.46/7,808,475.15 = 1,419,286.74/x - Step 3: Cross multiply
5,205,803.46x = 7,808,475.15 × 1,419,286.74 - Step 4: Simplify right side
5,205,803.46x = 11,082,465,240,014.51 - Step 5: Solve for x
x = 11,082,465,240,014.51/5,205,803.46 - Step 6: Final answer
x = 2,128,867.39
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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.