Finding the Fourth Proportional to 420,474,553.21, 580,237,319.89 and 241,844,857.12
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Solution
The fourth proportional to 420,474,553.21, 580,237,319.89 and 241,844,857.12 is: 333,735,800.78
Step by Step Solution
- Step 1: Write the proportion equation
420,474,553.21 : 580,237,319.89 = 241,844,857.12 : x - Step 2: Convert to fraction form
420,474,553.21/580,237,319.89 = 241,844,857.12/x - Step 3: Cross multiply
420,474,553.21x = 580,237,319.89 × 241,844,857.12 - Step 4: Simplify right side
420,474,553.21x = 140,327,411,723,279,568 - Step 5: Solve for x
x = 140,327,411,723,279,568/420,474,553.21 - Step 6: Final answer
x = 333,735,800.78
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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.