Finding the Fourth Proportional to 13,126,961.10, 18,115,496.57 and 7,246,581.69
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Solution
The fourth proportional to 13,126,961.10, 18,115,496.57 and 7,246,581.69 is: 10,000,442.96
Step by Step Solution
- Step 1: Write the proportion equation
13,126,961.10 : 18,115,496.57 = 7,246,581.69 : x - Step 2: Convert to fraction form
13,126,961.10/18,115,496.57 = 7,246,581.69/x - Step 3: Cross multiply
13,126,961.10x = 18,115,496.57 × 7,246,581.69 - Step 4: Simplify right side
13,126,961.10x = 131,275,425,749,419.81 - Step 5: Solve for x
x = 131,275,425,749,419.81/13,126,961.10 - Step 6: Final answer
x = 10,000,442.96
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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.