Finding the Fourth Proportional to 115,459,763.70, 159,274,065.96 and 71,392,675.98
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Solution
The fourth proportional to 115,459,763.70, 159,274,065.96 and 71,392,675.98 is: 98,484,540.58
Step by Step Solution
- Step 1: Write the proportion equation
115,459,763.70 : 159,274,065.96 = 71,392,675.98 : x - Step 2: Convert to fraction form
115,459,763.70/159,274,065.96 = 71,392,675.98/x - Step 3: Cross multiply
115,459,763.70x = 159,274,065.96 × 71,392,675.98 - Step 4: Simplify right side
115,459,763.70x = 11,371,001,783,099,428 - Step 5: Solve for x
x = 11,371,001,783,099,428/115,459,763.70 - Step 6: Final answer
x = 98,484,540.58
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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.