Finding the Fourth Proportional to 11,112,176.80, 16,668,265.20 and 6,558,551.20
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Solution
The fourth proportional to 11,112,176.80, 16,668,265.20 and 6,558,551.20 is: 9,837,826.80
Step by Step Solution
- Step 1: Write the proportion equation
11,112,176.80 : 16,668,265.20 = 6,558,551.20 : x - Step 2: Convert to fraction form
11,112,176.80/16,668,265.20 = 6,558,551.20/x - Step 3: Cross multiply
11,112,176.80x = 16,668,265.20 × 6,558,551.20 - Step 4: Simplify right side
11,112,176.80x = 109,319,670,729,378.23 - Step 5: Solve for x
x = 109,319,670,729,378.23/11,112,176.80 - Step 6: Final answer
x = 9,837,826.80
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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.