Finding the Fourth Proportional to 221,434,279.20, 332,151,418.80 and 135,340,837.20
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Solution
The fourth proportional to 221,434,279.20, 332,151,418.80 and 135,340,837.20 is: 203,011,255.80
Step by Step Solution
- Step 1: Write the proportion equation
221,434,279.20 : 332,151,418.80 = 135,340,837.20 : x - Step 2: Convert to fraction form
221,434,279.20/332,151,418.80 = 135,340,837.20/x - Step 3: Cross multiply
221,434,279.20x = 332,151,418.80 × 135,340,837.20 - Step 4: Simplify right side
221,434,279.20x = 44,953,651,097,559,816 - Step 5: Solve for x
x = 44,953,651,097,559,816/221,434,279.20 - Step 6: Final answer
x = 203,011,255.80
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1.5x scale
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.