Finding the Fourth Proportional to 311,589,774.72, 467,427,175.20 and 129,794,437.44
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Solution
The fourth proportional to 311,589,774.72, 467,427,175.20 and 129,794,437.44 is: 194,709,365.23
Step by Step Solution
- Step 1: Write the proportion equation
311,589,774.72 : 467,427,175.20 = 129,794,437.44 : x - Step 2: Convert to fraction form
311,589,774.72/467,427,175.20 = 129,794,437.44/x - Step 3: Cross multiply
311,589,774.72x = 467,427,175.20 × 129,794,437.44 - Step 4: Simplify right side
311,589,774.72x = 60,669,447,249,252,320 - Step 5: Solve for x
x = 60,669,447,249,252,320/311,589,774.72 - Step 6: Final answer
x = 194,709,365.23
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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.