Finding the Fourth Proportional to 307,260,879.72, 424,058,747.87 and 201,503,234.99
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Solution
The fourth proportional to 307,260,879.72, 424,058,747.87 and 201,503,234.99 is: 278,099,866.14
Step by Step Solution
- Step 1: Write the proportion equation
307,260,879.72 : 424,058,747.87 = 201,503,234.99 : x - Step 2: Convert to fraction form
307,260,879.72/424,058,747.87 = 201,503,234.99/x - Step 3: Cross multiply
307,260,879.72x = 424,058,747.87 × 201,503,234.99 - Step 4: Simplify right side
307,260,879.72x = 85,449,209,519,997,248 - Step 5: Solve for x
x = 85,449,209,519,997,248/307,260,879.72 - Step 6: Final answer
x = 278,099,866.14
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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.