Finding the Fourth Proportional to 72,560,277.20, 100,129,402.44 and 45,057,615.44
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Solution
The fourth proportional to 72,560,277.20, 100,129,402.44 and 45,057,615.44 is: 62,177,161.99
Step by Step Solution
- Step 1: Write the proportion equation
72,560,277.20 : 100,129,402.44 = 45,057,615.44 : x - Step 2: Convert to fraction form
72,560,277.20/100,129,402.44 = 45,057,615.44/x - Step 3: Cross multiply
72,560,277.20x = 100,129,402.44 × 45,057,615.44 - Step 4: Simplify right side
72,560,277.20x = 4,511,592,109,378,517 - Step 5: Solve for x
x = 4,511,592,109,378,517/72,560,277.20 - Step 6: Final answer
x = 62,177,161.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.