Finding the Fourth Proportional to 494,890,693.70, 742,984,813.82 and 331,857,963.95
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Solution
The fourth proportional to 494,890,693.70, 742,984,813.82 and 331,857,963.95 is: 498,221,992.65
Step by Step Solution
- Step 1: Write the proportion equation
494,890,693.70 : 742,984,813.82 = 331,857,963.95 : x - Step 2: Convert to fraction form
494,890,693.70/742,984,813.82 = 331,857,963.95/x - Step 3: Cross multiply
494,890,693.70x = 742,984,813.82 × 331,857,963.95 - Step 4: Simplify right side
494,890,693.70x = 246,565,427,557,189,728 - Step 5: Solve for x
x = 246,565,427,557,189,728/494,890,693.70 - Step 6: Final answer
x = 498,221,992.65
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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.