Finding the Fourth Proportional to 311,518,924.30, 430,028,484.20 and 194,102,266.72
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Solution
The fourth proportional to 311,518,924.30, 430,028,484.20 and 194,102,266.72 is: 267,943,604.80
Step by Step Solution
- Step 1: Write the proportion equation
311,518,924.30 : 430,028,484.20 = 194,102,266.72 : x - Step 2: Convert to fraction form
311,518,924.30/430,028,484.20 = 194,102,266.72/x - Step 3: Cross multiply
311,518,924.30x = 430,028,484.20 × 194,102,266.72 - Step 4: Simplify right side
311,518,924.30x = 83,469,503,538,901,600 - Step 5: Solve for x
x = 83,469,503,538,901,600/311,518,924.30 - Step 6: Final answer
x = 267,943,604.80
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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.