Finding the Fourth Proportional to 639,769,104.44, 959,543,920.26 and 202,972,429.70
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Solution
The fourth proportional to 639,769,104.44, 959,543,920.26 and 202,972,429.70 is: 304,423,829.70
Step by Step Solution
- Step 1: Write the proportion equation
639,769,104.44 : 959,543,920.26 = 202,972,429.70 : x - Step 2: Convert to fraction form
639,769,104.44/959,543,920.26 = 202,972,429.70/x - Step 3: Cross multiply
639,769,104.44x = 959,543,920.26 × 202,972,429.70 - Step 4: Simplify right side
639,769,104.44x = 194,760,960,894,237,536 - Step 5: Solve for x
x = 194,760,960,894,237,536/639,769,104.44 - Step 6: Final answer
x = 304,423,829.70
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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.