Finding the Fourth Proportional to 6,321,464.94, 8,723,621.70 and 3,420,855.84
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Solution
The fourth proportional to 6,321,464.94, 8,723,621.70 and 3,420,855.84 is: 4,720,781.10
Step by Step Solution
- Step 1: Write the proportion equation
6,321,464.94 : 8,723,621.70 = 3,420,855.84 : x - Step 2: Convert to fraction form
6,321,464.94/8,723,621.70 = 3,420,855.84/x - Step 3: Cross multiply
6,321,464.94x = 8,723,621.70 × 3,420,855.84 - Step 4: Simplify right side
6,321,464.94x = 29,842,252,238,395.72 - Step 5: Solve for x
x = 29,842,252,238,395.72/6,321,464.94 - Step 6: Final answer
x = 4,720,781.10
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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.