Finding the Fourth Proportional to 213,124,934.28, 294,112,405.74 and 115,339,790.28
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Solution
The fourth proportional to 213,124,934.28, 294,112,405.74 and 115,339,790.28 is: 159,168,908.66
Step by Step Solution
- Step 1: Write the proportion equation
213,124,934.28 : 294,112,405.74 = 115,339,790.28 : x - Step 2: Convert to fraction form
213,124,934.28/294,112,405.74 = 115,339,790.28/x - Step 3: Cross multiply
213,124,934.28x = 294,112,405.74 × 115,339,790.28 - Step 4: Simplify right side
213,124,934.28x = 33,922,863,196,797,868 - Step 5: Solve for x
x = 33,922,863,196,797,868/213,124,934.28 - Step 6: Final answer
x = 159,168,908.66
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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.