Finding the Fourth Proportional to 2,639,346,645.22, 3,642,300,757.62 and 1,449,992,660.49
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Solution
The fourth proportional to 2,639,346,645.22, 3,642,300,757.62 and 1,449,992,660.49 is: 2,000,991,182.96
Step by Step Solution
- Step 1: Write the proportion equation
2,639,346,645.22 : 3,642,300,757.62 = 1,449,992,660.49 : x - Step 2: Convert to fraction form
2,639,346,645.22/3,642,300,757.62 = 1,449,992,660.49/x - Step 3: Cross multiply
2,639,346,645.22x = 3,642,300,757.62 × 1,449,992,660.49 - Step 4: Simplify right side
2,639,346,645.22x = 5,281,309,365,846,166,528 - Step 5: Solve for x
x = 5,281,309,365,846,166,528/2,639,346,645.22 - Step 6: Final answer
x = 2,000,991,182.96
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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.