Finding the Fourth Proportional to 392,202,397.80, 588,303,596.70 and 239,147,389.80
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Solution
The fourth proportional to 392,202,397.80, 588,303,596.70 and 239,147,389.80 is: 358,721,084.70
Step by Step Solution
- Step 1: Write the proportion equation
392,202,397.80 : 588,303,596.70 = 239,147,389.80 : x - Step 2: Convert to fraction form
392,202,397.80/588,303,596.70 = 239,147,389.80/x - Step 3: Cross multiply
392,202,397.80x = 588,303,596.70 × 239,147,389.80 - Step 4: Simplify right side
392,202,397.80x = 140,691,269,560,756,912 - Step 5: Solve for x
x = 140,691,269,560,756,912/392,202,397.80 - Step 6: Final answer
x = 358,721,084.70
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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.