Finding the Fourth Proportional to 13,770,788.87, 20,655,435.79 and 4,185,420.06
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Solution
The fourth proportional to 13,770,788.87, 20,655,435.79 and 4,185,420.06 is: 6,277,902.90
Step by Step Solution
- Step 1: Write the proportion equation
13,770,788.87 : 20,655,435.79 = 4,185,420.06 : x - Step 2: Convert to fraction form
13,770,788.87/20,655,435.79 = 4,185,420.06/x - Step 3: Cross multiply
13,770,788.87x = 20,655,435.79 × 4,185,420.06 - Step 4: Simplify right side
13,770,788.87x = 86,451,675,308,739.73 - Step 5: Solve for x
x = 86,451,675,308,739.73/13,770,788.87 - Step 6: Final answer
x = 6,277,902.90
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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.