Finding the Fourth Proportional to 13,708,321.70, 18,919,568.21 and 8,748,902.81
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Solution
The fourth proportional to 13,708,321.70, 18,919,568.21 and 8,748,902.81 is: 12,074,816.09
Step by Step Solution
- Step 1: Write the proportion equation
13,708,321.70 : 18,919,568.21 = 8,748,902.81 : x - Step 2: Convert to fraction form
13,708,321.70/18,919,568.21 = 8,748,902.81/x - Step 3: Cross multiply
13,708,321.70x = 18,919,568.21 × 8,748,902.81 - Step 4: Simplify right side
13,708,321.70x = 165,525,463,476,455.69 - Step 5: Solve for x
x = 165,525,463,476,455.69/13,708,321.70 - Step 6: Final answer
x = 12,074,816.09
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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.