Finding the Fourth Proportional to 115,459,764.70, 159,274,067.34 and 71,392,676.98
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Solution
The fourth proportional to 115,459,764.70, 159,274,067.34 and 71,392,676.98 is: 98,484,541.96
Step by Step Solution
- Step 1: Write the proportion equation
115,459,764.70 : 159,274,067.34 = 71,392,676.98 : x - Step 2: Convert to fraction form
115,459,764.70/159,274,067.34 = 71,392,676.98/x - Step 3: Cross multiply
115,459,764.70x = 159,274,067.34 × 71,392,676.98 - Step 4: Simplify right side
115,459,764.70x = 11,371,002,040,895,388 - Step 5: Solve for x
x = 11,371,002,040,895,388/115,459,764.70 - Step 6: Final answer
x = 98,484,541.96
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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.