Finding the Fourth Proportional to 421,324,738.74, 632,236,777.75 and 234,734,859.13
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Solution
The fourth proportional to 421,324,738.74, 632,236,777.75 and 234,734,859.13 is: 352,241,388.45
Step by Step Solution
- Step 1: Write the proportion equation
421,324,738.74 : 632,236,777.75 = 234,734,859.13 : x - Step 2: Convert to fraction form
421,324,738.74/632,236,777.75 = 234,734,859.13/x - Step 3: Cross multiply
421,324,738.74x = 632,236,777.75 × 234,734,859.13 - Step 4: Simplify right side
421,324,738.74x = 148,408,010,961,951,360 - Step 5: Solve for x
x = 148,408,010,961,951,360/421,324,738.74 - Step 6: Final answer
x = 352,241,388.45
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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.