Finding the Fourth Proportional to 13,471,610.12, 18,590,829.43 and 7,276,656.80
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Solution
The fourth proportional to 13,471,610.12, 18,590,829.43 and 7,276,656.80 is: 10,041,790.42
Step by Step Solution
- Step 1: Write the proportion equation
13,471,610.12 : 18,590,829.43 = 7,276,656.80 : x - Step 2: Convert to fraction form
13,471,610.12/18,590,829.43 = 7,276,656.80/x - Step 3: Cross multiply
13,471,610.12x = 18,590,829.43 × 7,276,656.80 - Step 4: Simplify right side
13,471,610.12x = 135,279,085,417,735.05 - Step 5: Solve for x
x = 135,279,085,417,735.05/13,471,610.12 - Step 6: Final answer
x = 10,041,790.42
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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.