Finding the Fourth Proportional to 6,519,758.19, 8,996,816.21 and 3,618,920.68
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Solution
The fourth proportional to 6,519,758.19, 8,996,816.21 and 3,618,920.68 is: 4,993,860.71
Step by Step Solution
- Step 1: Write the proportion equation
6,519,758.19 : 8,996,816.21 = 3,618,920.68 : x - Step 2: Convert to fraction form
6,519,758.19/8,996,816.21 = 3,618,920.68/x - Step 3: Cross multiply
6,519,758.19x = 8,996,816.21 × 3,618,920.68 - Step 4: Simplify right side
6,519,758.19x = 32,558,764,246,548.67 - Step 5: Solve for x
x = 32,558,764,246,548.67/6,519,758.19 - Step 6: Final answer
x = 4,993,860.71
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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.