Finding the Fourth Proportional to 13,673,544.56, 18,867,395.40 and 7,871,205.12
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Solution
The fourth proportional to 13,673,544.56, 18,867,395.40 and 7,871,205.12 is: 10,861,056.45
Step by Step Solution
- Step 1: Write the proportion equation
13,673,544.56 : 18,867,395.40 = 7,871,205.12 : x - Step 2: Convert to fraction form
13,673,544.56/18,867,395.40 = 7,871,205.12/x - Step 3: Cross multiply
13,673,544.56x = 18,867,395.40 × 7,871,205.12 - Step 4: Simplify right side
13,673,544.56x = 148,509,139,273,544.44 - Step 5: Solve for x
x = 148,509,139,273,544.44/13,673,544.56 - Step 6: Final answer
x = 10,861,056.45
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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.