Finding the Fourth Proportional to 421,666,296.50, 581,905,431.99 and 242,951,414.33
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Solution
The fourth proportional to 421,666,296.50, 581,905,431.99 and 242,951,414.33 is: 335,276,375.85
Step by Step Solution
- Step 1: Write the proportion equation
421,666,296.50 : 581,905,431.99 = 242,951,414.33 : x - Step 2: Convert to fraction form
421,666,296.50/581,905,431.99 = 242,951,414.33/x - Step 3: Cross multiply
421,666,296.50x = 581,905,431.99 × 242,951,414.33 - Step 4: Simplify right side
421,666,296.50x = 141,374,747,705,370,592 - Step 5: Solve for x
x = 141,374,747,705,370,592/421,666,296.50 - Step 6: Final answer
x = 335,276,375.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.