Finding the Fourth Proportional to 28,119,249.12, 42,178,479.92 and 11,080,069.68
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Solution
The fourth proportional to 28,119,249.12, 42,178,479.92 and 11,080,069.68 is: 16,619,949.36
Step by Step Solution
- Step 1: Write the proportion equation
28,119,249.12 : 42,178,479.92 = 11,080,069.68 : x - Step 2: Convert to fraction form
28,119,249.12/42,178,479.92 = 11,080,069.68/x - Step 3: Cross multiply
28,119,249.12x = 42,178,479.92 × 11,080,069.68 - Step 4: Simplify right side
28,119,249.12x = 467,340,496,510,080.81 - Step 5: Solve for x
x = 467,340,496,510,080.81/28,119,249.12 - Step 6: Final answer
x = 16,619,949.36
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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.