Finding the Fourth Proportional to 13,100,958.76, 18,079,394.79 and 7,597,596.55
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Solution
The fourth proportional to 13,100,958.76, 18,079,394.79 and 7,597,596.55 is: 10,484,724.82
Step by Step Solution
- Step 1: Write the proportion equation
13,100,958.76 : 18,079,394.79 = 7,597,596.55 : x - Step 2: Convert to fraction form
13,100,958.76/18,079,394.79 = 7,597,596.55/x - Step 3: Cross multiply
13,100,958.76x = 18,079,394.79 × 7,597,596.55 - Step 4: Simplify right side
13,100,958.76x = 137,359,947,482,591.97 - Step 5: Solve for x
x = 137,359,947,482,591.97/13,100,958.76 - Step 6: Final answer
x = 10,484,724.82
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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.