Finding the Fourth Proportional to 13,770,789.26, 20,655,436.34 and 4,185,420.44
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Solution
The fourth proportional to 13,770,789.26, 20,655,436.34 and 4,185,420.44 is: 6,277,903.45
Step by Step Solution
- Step 1: Write the proportion equation
13,770,789.26 : 20,655,436.34 = 4,185,420.44 : x - Step 2: Convert to fraction form
13,770,789.26/20,655,436.34 = 4,185,420.44/x - Step 3: Cross multiply
13,770,789.26x = 20,655,436.34 × 4,185,420.44 - Step 4: Simplify right side
13,770,789.26x = 86,451,685,361,741.17 - Step 5: Solve for x
x = 86,451,685,361,741.17/13,770,789.26 - Step 6: Final answer
x = 6,277,903.45
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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.