Finding the Fourth Proportional to 13,223,649.14, 18,247,634.33 and 7,421,310.26
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Solution
The fourth proportional to 13,223,649.14, 18,247,634.33 and 7,421,310.26 is: 10,240,846.11
Step by Step Solution
- Step 1: Write the proportion equation
13,223,649.14 : 18,247,634.33 = 7,421,310.26 : x - Step 2: Convert to fraction form
13,223,649.14/18,247,634.33 = 7,421,310.26/x - Step 3: Cross multiply
13,223,649.14x = 18,247,634.33 × 7,421,310.26 - Step 4: Simplify right side
13,223,649.14x = 135,421,355,745,612.50 - Step 5: Solve for x
x = 135,421,355,745,612.50/13,223,649.14 - Step 6: Final answer
x = 10,240,846.11
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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.