Finding the Fourth Proportional to 13,541,753.36, 18,687,616.56 and 7,740,659.99
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Solution
The fourth proportional to 13,541,753.36, 18,687,616.56 and 7,740,659.99 is: 10,682,109.02
Step by Step Solution
- Step 1: Write the proportion equation
13,541,753.36 : 18,687,616.56 = 7,740,659.99 : x - Step 2: Convert to fraction form
13,541,753.36/18,687,616.56 = 7,740,659.99/x - Step 3: Cross multiply
13,541,753.36x = 18,687,616.56 × 7,740,659.99 - Step 4: Simplify right side
13,541,753.36x = 144,654,485,721,015.34 - Step 5: Solve for x
x = 144,654,485,721,015.34/13,541,753.36 - Step 6: Final answer
x = 10,682,109.02
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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.