Finding the Fourth Proportional to 2,639,313,387.70, 3,961,520,998.35 and 1,330,693,069.30
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Solution
The fourth proportional to 2,639,313,387.70, 3,961,520,998.35 and 1,330,693,069.30 is: 1,997,325,729.09
Step by Step Solution
- Step 1: Write the proportion equation
2,639,313,387.70 : 3,961,520,998.35 = 1,330,693,069.30 : x - Step 2: Convert to fraction form
2,639,313,387.70/3,961,520,998.35 = 1,330,693,069.30/x - Step 3: Cross multiply
2,639,313,387.70x = 3,961,520,998.35 × 1,330,693,069.30 - Step 4: Simplify right side
2,639,313,387.70x = 5,271,568,536,390,761,472 - Step 5: Solve for x
x = 5,271,568,536,390,761,472/2,639,313,387.70 - Step 6: Final answer
x = 1,997,325,729.09
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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.