Finding the Fourth Proportional to 13,639,267.36, 18,822,096.24 and 7,527,695.68
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Solution
The fourth proportional to 13,639,267.36, 18,822,096.24 and 7,527,695.68 is: 10,388,168.87
Step by Step Solution
- Step 1: Write the proportion equation
13,639,267.36 : 18,822,096.24 = 7,527,695.68 : x - Step 2: Convert to fraction form
13,639,267.36/18,822,096.24 = 7,527,695.68/x - Step 3: Cross multiply
13,639,267.36x = 18,822,096.24 × 7,527,695.68 - Step 4: Simplify right side
13,639,267.36x = 141,687,012,554,392.22 - Step 5: Solve for x
x = 141,687,012,554,392.22/13,639,267.36 - Step 6: Final answer
x = 10,388,168.87
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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.