Finding the Fourth Proportional to 757,498,350.48, 1,135,243,036.60 and 389,018,418.72
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Solution
The fourth proportional to 757,498,350.48, 1,135,243,036.60 and 389,018,418.72 is: 583,011,765.88
Step by Step Solution
- Step 1: Write the proportion equation
757,498,350.48 : 1,135,243,036.60 = 389,018,418.72 : x - Step 2: Convert to fraction form
757,498,350.48/1,135,243,036.60 = 389,018,418.72/x - Step 3: Cross multiply
757,498,350.48x = 1,135,243,036.60 × 389,018,418.72 - Step 4: Simplify right side
757,498,350.48x = 441,630,450,961,023,104 - Step 5: Solve for x
x = 441,630,450,961,023,104/757,498,350.48 - Step 6: Final answer
x = 583,011,765.88
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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.