Finding the Fourth Proportional to 15,058,190.96, 20,780,610.84 and 8,183,115.90
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Solution
The fourth proportional to 15,058,190.96, 20,780,610.84 and 8,183,115.90 is: 11,292,866.95
Step by Step Solution
- Step 1: Write the proportion equation
15,058,190.96 : 20,780,610.84 = 8,183,115.90 : x - Step 2: Convert to fraction form
15,058,190.96/20,780,610.84 = 8,183,115.90/x - Step 3: Cross multiply
15,058,190.96x = 20,780,610.84 × 8,183,115.90 - Step 4: Simplify right side
15,058,190.96x = 170,050,146,976,516.38 - Step 5: Solve for x
x = 170,050,146,976,516.38/15,058,190.96 - Step 6: Final answer
x = 11,292,866.95
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1.5x scale
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.