Finding the Fourth Proportional to 11,943,432.21, 17,912,195.61 and 5,119,231.50
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Solution
The fourth proportional to 11,943,432.21, 17,912,195.61 and 5,119,231.50 is: 7,677,581.65
Step by Step Solution
- Step 1: Write the proportion equation
11,943,432.21 : 17,912,195.61 = 5,119,231.50 : x - Step 2: Convert to fraction form
11,943,432.21/17,912,195.61 = 5,119,231.50/x - Step 3: Cross multiply
11,943,432.21x = 17,912,195.61 × 5,119,231.50 - Step 4: Simplify right side
11,943,432.21x = 91,696,676,000,873.72 - Step 5: Solve for x
x = 91,696,676,000,873.72/11,943,432.21 - Step 6: Final answer
x = 7,677,581.65
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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.