Finding the Fourth Proportional to 2,659,488,001.20, 3,989,232,001.80 and 2,206,503,169.20
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Solution
The fourth proportional to 2,659,488,001.20, 3,989,232,001.80 and 2,206,503,169.20 is: 3,309,754,753.80
Step by Step Solution
- Step 1: Write the proportion equation
2,659,488,001.20 : 3,989,232,001.80 = 2,206,503,169.20 : x - Step 2: Convert to fraction form
2,659,488,001.20/3,989,232,001.80 = 2,206,503,169.20/x - Step 3: Cross multiply
2,659,488,001.20x = 3,989,232,001.80 × 2,206,503,169.20 - Step 4: Simplify right side
2,659,488,001.20x = 8,802,253,054,645,760,000 - Step 5: Solve for x
x = 8,802,253,054,645,760,000/2,659,488,001.20 - Step 6: Final answer
x = 3,309,754,753.80
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1.5x scale
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.