Finding the Fourth Proportional to 103,780,467,556.68, 155,419,313,964.95 and 71,819,581,569.75
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Solution
The fourth proportional to 103,780,467,556.68, 155,419,313,964.95 and 71,819,581,569.75 is: 107,555,403,821.28
Step by Step Solution
- Step 1: Write the proportion equation
103,780,467,556.68 : 155,419,313,964.95 = 71,819,581,569.75 : x - Step 2: Convert to fraction form
103,780,467,556.68/155,419,313,964.95 = 71,819,581,569.75/x - Step 3: Cross multiply
103,780,467,556.68x = 155,419,313,964.95 × 71,819,581,569.75 - Step 4: Simplify right side
103,780,467,556.68x = 11,162,150,096,820,311,687,168 - Step 5: Solve for x
x = 11,162,150,096,820,311,687,168/103,780,467,556.68 - Step 6: Final answer
x = 107,555,403,821.28
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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.