Finding the Fourth Proportional to 3,800,745,111.15, 5,697,126,818.53 and 1,278,797,848.97
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Solution
The fourth proportional to 3,800,745,111.15, 5,697,126,818.53 and 1,278,797,848.97 is: 1,916,854,013.56
Step by Step Solution
- Step 1: Write the proportion equation
3,800,745,111.15 : 5,697,126,818.53 = 1,278,797,848.97 : x - Step 2: Convert to fraction form
3,800,745,111.15/5,697,126,818.53 = 1,278,797,848.97/x - Step 3: Cross multiply
3,800,745,111.15x = 5,697,126,818.53 × 1,278,797,848.97 - Step 4: Simplify right side
3,800,745,111.15x = 7,285,473,520,813,780,992 - Step 5: Solve for x
x = 7,285,473,520,813,780,992/3,800,745,111.15 - Step 6: Final answer
x = 1,916,854,013.56
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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.