Finding the Fourth Proportional to 356,027,107.20, 534,135,139.20 and 125,972,203.20
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Solution
The fourth proportional to 356,027,107.20, 534,135,139.20 and 125,972,203.20 is: 188,991,733.86
Step by Step Solution
- Step 1: Write the proportion equation
356,027,107.20 : 534,135,139.20 = 125,972,203.20 : x - Step 2: Convert to fraction form
356,027,107.20/534,135,139.20 = 125,972,203.20/x - Step 3: Cross multiply
356,027,107.20x = 534,135,139.20 × 125,972,203.20 - Step 4: Simplify right side
356,027,107.20x = 67,286,180,291,562,688 - Step 5: Solve for x
x = 67,286,180,291,562,688/356,027,107.20 - Step 6: Final answer
x = 188,991,733.86
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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.