Finding the Fourth Proportional to 13,288,519.20, 19,932,778.80 and 7,226,155.20
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Solution
The fourth proportional to 13,288,519.20, 19,932,778.80 and 7,226,155.20 is: 10,839,232.80
Step by Step Solution
- Step 1: Write the proportion equation
13,288,519.20 : 19,932,778.80 = 7,226,155.20 : x - Step 2: Convert to fraction form
13,288,519.20/19,932,778.80 = 7,226,155.20/x - Step 3: Cross multiply
13,288,519.20x = 19,932,778.80 × 7,226,155.20 - Step 4: Simplify right side
13,288,519.20x = 144,037,353,176,069.78 - Step 5: Solve for x
x = 144,037,353,176,069.78/13,288,519.20 - Step 6: Final answer
x = 10,839,232.80
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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.