Finding the Fourth Proportional to 395,929,795.20, 593,894,692.80 and 266,935,286.40
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Solution
The fourth proportional to 395,929,795.20, 593,894,692.80 and 266,935,286.40 is: 400,402,929.60
Step by Step Solution
- Step 1: Write the proportion equation
395,929,795.20 : 593,894,692.80 = 266,935,286.40 : x - Step 2: Convert to fraction form
395,929,795.20/593,894,692.80 = 266,935,286.40/x - Step 3: Cross multiply
395,929,795.20x = 593,894,692.80 × 266,935,286.40 - Step 4: Simplify right side
395,929,795.20x = 158,531,449,914,008,000 - Step 5: Solve for x
x = 158,531,449,914,008,000/395,929,795.20 - Step 6: Final answer
x = 400,402,929.60
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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.