Finding the Fourth Proportional to 10,597,845.60, 15,880,438.80 and 7,889,464.80
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Solution
The fourth proportional to 10,597,845.60, 15,880,438.80 and 7,889,464.80 is: 11,822,040.79
Step by Step Solution
- Step 1: Write the proportion equation
10,597,845.60 : 15,880,438.80 = 7,889,464.80 : x - Step 2: Convert to fraction form
10,597,845.60/15,880,438.80 = 7,889,464.80/x - Step 3: Cross multiply
10,597,845.60x = 15,880,438.80 × 7,889,464.80 - Step 4: Simplify right side
10,597,845.60x = 125,288,162,921,154.25 - Step 5: Solve for x
x = 125,288,162,921,154.25/10,597,845.60 - Step 6: Final answer
x = 11,822,040.79
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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.