Finding the Fourth Proportional to 11,006,800.80, 15,189,432.80 and 6,112,007.92
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Solution
The fourth proportional to 11,006,800.80, 15,189,432.80 and 6,112,007.92 is: 8,434,597.41
Step by Step Solution
- Step 1: Write the proportion equation
11,006,800.80 : 15,189,432.80 = 6,112,007.92 : x - Step 2: Convert to fraction form
11,006,800.80/15,189,432.80 = 6,112,007.92/x - Step 3: Cross multiply
11,006,800.80x = 15,189,432.80 × 6,112,007.92 - Step 4: Simplify right side
11,006,800.80x = 92,837,933,573,907.78 - Step 5: Solve for x
x = 92,837,933,573,907.78/11,006,800.80 - Step 6: Final answer
x = 8,434,597.41
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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.