Finding the Fourth Proportional to 81,649,353.70, 122,474,030.55 and 27,796,665.70
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Solution
The fourth proportional to 81,649,353.70, 122,474,030.55 and 27,796,665.70 is: 41,694,998.55
Step by Step Solution
- Step 1: Write the proportion equation
81,649,353.70 : 122,474,030.55 = 27,796,665.70 : x - Step 2: Convert to fraction form
81,649,353.70/122,474,030.55 = 27,796,665.70/x - Step 3: Cross multiply
81,649,353.70x = 122,474,030.55 × 27,796,665.70 - Step 4: Simplify right side
81,649,353.70x = 3,404,369,684,129,937 - Step 5: Solve for x
x = 3,404,369,684,129,937/81,649,353.70 - Step 6: Final answer
x = 41,694,998.55
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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.