Finding the Fourth Proportional to 11,508,769.70, 15,880,971.46 and 6,351,799.10
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Solution
The fourth proportional to 11,508,769.70, 15,880,971.46 and 6,351,799.10 is: 8,764,858.70
Step by Step Solution
- Step 1: Write the proportion equation
11,508,769.70 : 15,880,971.46 = 6,351,799.10 : x - Step 2: Convert to fraction form
11,508,769.70/15,880,971.46 = 6,351,799.10/x - Step 3: Cross multiply
11,508,769.70x = 15,880,971.46 × 6,351,799.10 - Step 4: Simplify right side
11,508,769.70x = 100,872,740,194,994.69 - Step 5: Solve for x
x = 100,872,740,194,994.69/11,508,769.70 - Step 6: Final answer
x = 8,764,858.70
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1.5x scale
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.