Finding the Fourth Proportional to 6,369,421.08, 8,789,739.84 and 3,468,860.40
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Solution
The fourth proportional to 6,369,421.08, 8,789,739.84 and 3,468,860.40 is: 4,786,993.99
Step by Step Solution
- Step 1: Write the proportion equation
6,369,421.08 : 8,789,739.84 = 3,468,860.40 : x - Step 2: Convert to fraction form
6,369,421.08/8,789,739.84 = 3,468,860.40/x - Step 3: Cross multiply
6,369,421.08x = 8,789,739.84 × 3,468,860.40 - Step 4: Simplify right side
6,369,421.08x = 30,490,380,457,278.34 - Step 5: Solve for x
x = 30,490,380,457,278.34/6,369,421.08 - Step 6: Final answer
x = 4,786,993.99
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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.