Finding the Fourth Proportional to 122,512,664,393.15, 169,067,639,728.62 and 67,578,598,253.45
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Solution
The fourth proportional to 122,512,664,393.15, 169,067,639,728.62 and 67,578,598,253.45 is: 93,258,555,427.50
Step by Step Solution
- Step 1: Write the proportion equation
122,512,664,393.15 : 169,067,639,728.62 = 67,578,598,253.45 : x - Step 2: Convert to fraction form
122,512,664,393.15/169,067,639,728.62 = 67,578,598,253.45/x - Step 3: Cross multiply
122,512,664,393.15x = 169,067,639,728.62 × 67,578,598,253.45 - Step 4: Simplify right side
122,512,664,393.15x = 11,425,354,102,879,431,950,336 - Step 5: Solve for x
x = 11,425,354,102,879,431,950,336/122,512,664,393.15 - Step 6: Final answer
x = 93,258,555,427.50
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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.