Finding the Fourth Proportional to 11,125,558.20, 16,668,983.70 and 5,129,628.60
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Solution
The fourth proportional to 11,125,558.20, 16,668,983.70 and 5,129,628.60 is: 7,685,519.59
Step by Step Solution
- Step 1: Write the proportion equation
11,125,558.20 : 16,668,983.70 = 5,129,628.60 : x - Step 2: Convert to fraction form
11,125,558.20/16,668,983.70 = 5,129,628.60/x - Step 3: Cross multiply
11,125,558.20x = 16,668,983.70 × 5,129,628.60 - Step 4: Simplify right side
11,125,558.20x = 85,505,695,520,453.81 - Step 5: Solve for x
x = 85,505,695,520,453.81/11,125,558.20 - Step 6: Final answer
x = 7,685,519.59
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.