Finding the Fourth Proportional to 311,518,725.57, 430,028,209.95 and 194,102,067.98
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Solution
The fourth proportional to 311,518,725.57, 430,028,209.95 and 194,102,067.98 is: 267,943,330.50
Step by Step Solution
- Step 1: Write the proportion equation
311,518,725.57 : 430,028,209.95 = 194,102,067.98 : x - Step 2: Convert to fraction form
311,518,725.57/430,028,209.95 = 194,102,067.98/x - Step 3: Cross multiply
311,518,725.57x = 430,028,209.95 × 194,102,067.98 - Step 4: Simplify right side
311,518,725.57x = 83,469,364,840,062,096 - Step 5: Solve for x
x = 83,469,364,840,062,096/311,518,725.57 - Step 6: Final answer
x = 267,943,330.50
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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.