Finding the Fourth Proportional to 221,434,279.70, 332,151,419.55 and 135,340,837.70
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Solution
The fourth proportional to 221,434,279.70, 332,151,419.55 and 135,340,837.70 is: 203,011,256.55
Step by Step Solution
- Step 1: Write the proportion equation
221,434,279.70 : 332,151,419.55 = 135,340,837.70 : x - Step 2: Convert to fraction form
221,434,279.70/332,151,419.55 = 135,340,837.70/x - Step 3: Cross multiply
221,434,279.70x = 332,151,419.55 × 135,340,837.70 - Step 4: Simplify right side
221,434,279.70x = 44,953,651,365,141,152 - Step 5: Solve for x
x = 44,953,651,365,141,152/221,434,279.70 - Step 6: Final answer
x = 203,011,256.55
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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.