Finding the Fourth Proportional to 10,388,711.70, 15,583,067.55 and 4,720,007.70
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Solution
The fourth proportional to 10,388,711.70, 15,583,067.55 and 4,720,007.70 is: 7,080,011.55
Step by Step Solution
- Step 1: Write the proportion equation
10,388,711.70 : 15,583,067.55 = 4,720,007.70 : x - Step 2: Convert to fraction form
10,388,711.70/15,583,067.55 = 4,720,007.70/x - Step 3: Cross multiply
10,388,711.70x = 15,583,067.55 × 4,720,007.70 - Step 4: Simplify right side
10,388,711.70x = 73,552,198,825,620.14 - Step 5: Solve for x
x = 73,552,198,825,620.14/10,388,711.70 - Step 6: Final answer
x = 7,080,011.55
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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.