Finding the Fourth Proportional to 3,974,162,464.17, 5,484,380,470.20 and 2,190,079,929.87
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Solution
The fourth proportional to 3,974,162,464.17, 5,484,380,470.20 and 2,190,079,929.87 is: 3,022,330,290.68
Step by Step Solution
- Step 1: Write the proportion equation
3,974,162,464.17 : 5,484,380,470.20 = 2,190,079,929.87 : x - Step 2: Convert to fraction form
3,974,162,464.17/5,484,380,470.20 = 2,190,079,929.87/x - Step 3: Cross multiply
3,974,162,464.17x = 5,484,380,470.20 × 2,190,079,929.87 - Step 4: Simplify right side
3,974,162,464.17x = 12,011,231,595,556,012,032 - Step 5: Solve for x
x = 12,011,231,595,556,012,032/3,974,162,464.17 - Step 6: Final answer
x = 3,022,330,290.68
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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.