Finding the Fourth Proportional to 85,187,870,007.75, 117,562,722,063.08 and 47,125,420,772.67
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Solution
The fourth proportional to 85,187,870,007.75, 117,562,722,063.08 and 47,125,420,772.67 is: 65,034,995,521.07
Step by Step Solution
- Step 1: Write the proportion equation
85,187,870,007.75 : 117,562,722,063.08 = 47,125,420,772.67 : x - Step 2: Convert to fraction form
85,187,870,007.75/117,562,722,063.08 = 47,125,420,772.67/x - Step 3: Cross multiply
85,187,870,007.75x = 117,562,722,063.08 × 47,125,420,772.67 - Step 4: Simplify right side
85,187,870,007.75x = 5,540,192,744,403,099,451,392 - Step 5: Solve for x
x = 5,540,192,744,403,099,451,392/85,187,870,007.75 - Step 6: Final answer
x = 65,034,995,521.07
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.