Finding the Fourth Proportional to 10,217,021.76, 14,084,840.16 and 8,037,780.12
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Solution
The fourth proportional to 10,217,021.76, 14,084,840.16 and 8,037,780.12 is: 11,080,611.44
Step by Step Solution
- Step 1: Write the proportion equation
10,217,021.76 : 14,084,840.16 = 8,037,780.12 : x - Step 2: Convert to fraction form
10,217,021.76/14,084,840.16 = 8,037,780.12/x - Step 3: Cross multiply
10,217,021.76x = 14,084,840.16 × 8,037,780.12 - Step 4: Simplify right side
10,217,021.76x = 113,210,848,231,425.62 - Step 5: Solve for x
x = 113,210,848,231,425.62/10,217,021.76 - Step 6: Final answer
x = 11,080,611.44
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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.