Finding the Fourth Proportional to 7,870,523,469.84, 11,805,785,205.57 and 2,630,131,679.79
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Solution
The fourth proportional to 7,870,523,469.84, 11,805,785,205.57 and 2,630,131,679.79 is: 3,945,197,519.96
Step by Step Solution
- Step 1: Write the proportion equation
7,870,523,469.84 : 11,805,785,205.57 = 2,630,131,679.79 : x - Step 2: Convert to fraction form
7,870,523,469.84/11,805,785,205.57 = 2,630,131,679.79/x - Step 3: Cross multiply
7,870,523,469.84x = 11,805,785,205.57 × 2,630,131,679.79 - Step 4: Simplify right side
7,870,523,469.84x = 31,050,769,673,965,752,320 - Step 5: Solve for x
x = 31,050,769,673,965,752,320/7,870,523,469.84 - Step 6: Final answer
x = 3,945,197,519.96
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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.