Finding the Fourth Proportional to 3,151,873,342.20, 4,727,810,013.30 and 2,099,761,879.80
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Solution
The fourth proportional to 3,151,873,342.20, 4,727,810,013.30 and 2,099,761,879.80 is: 3,149,642,819.70
Step by Step Solution
- Step 1: Write the proportion equation
3,151,873,342.20 : 4,727,810,013.30 = 2,099,761,879.80 : x - Step 2: Convert to fraction form
3,151,873,342.20/4,727,810,013.30 = 2,099,761,879.80/x - Step 3: Cross multiply
3,151,873,342.20x = 4,727,810,013.30 × 2,099,761,879.80 - Step 4: Simplify right side
3,151,873,342.20x = 9,927,275,240,864,071,680 - Step 5: Solve for x
x = 9,927,275,240,864,071,680/3,151,873,342.20 - Step 6: Final answer
x = 3,149,642,819.70
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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.