Finding the Fourth Proportional to 15,009,701.97, 20,713,406.40 and 8,134,184.03
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Solution
The fourth proportional to 15,009,701.97, 20,713,406.40 and 8,134,184.03 is: 11,225,183.54
Step by Step Solution
- Step 1: Write the proportion equation
15,009,701.97 : 20,713,406.40 = 8,134,184.03 : x - Step 2: Convert to fraction form
15,009,701.97/20,713,406.40 = 8,134,184.03/x - Step 3: Cross multiply
15,009,701.97x = 20,713,406.40 × 8,134,184.03 - Step 4: Simplify right side
15,009,701.97x = 168,486,659,442,212.75 - Step 5: Solve for x
x = 168,486,659,442,212.75/15,009,701.97 - Step 6: Final answer
x = 11,225,183.54
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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.