Finding the Fourth Proportional to 395,942,879.20, 593,914,318.80 and 344,924,543.20
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Solution
The fourth proportional to 395,942,879.20, 593,914,318.80 and 344,924,543.20 is: 517,386,814.80
Step by Step Solution
- Step 1: Write the proportion equation
395,942,879.20 : 593,914,318.80 = 344,924,543.20 : x - Step 2: Convert to fraction form
395,942,879.20/593,914,318.80 = 344,924,543.20/x - Step 3: Cross multiply
395,942,879.20x = 593,914,318.80 × 344,924,543.20 - Step 4: Simplify right side
395,942,879.20x = 204,855,625,112,029,152 - Step 5: Solve for x
x = 204,855,625,112,029,152/395,942,879.20 - Step 6: Final answer
x = 517,386,814.80
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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.