Finding the Fourth Proportional to 12,770,961.12, 19,162,420.41 and 5,581,560.87
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Solution
The fourth proportional to 12,770,961.12, 19,162,420.41 and 5,581,560.87 is: 8,374,954.31
Step by Step Solution
- Step 1: Write the proportion equation
12,770,961.12 : 19,162,420.41 = 5,581,560.87 : x - Step 2: Convert to fraction form
12,770,961.12/19,162,420.41 = 5,581,560.87/x - Step 3: Cross multiply
12,770,961.12x = 19,162,420.41 × 5,581,560.87 - Step 4: Simplify right side
12,770,961.12x = 106,956,215,934,945.36 - Step 5: Solve for x
x = 106,956,215,934,945.36/12,770,961.12 - Step 6: Final answer
x = 8,374,954.31
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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.