Finding the Fourth Proportional to 20,703,416.43, 28,571,588.97 and 11,536,056.75
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Solution
The fourth proportional to 20,703,416.43, 28,571,588.97 and 11,536,056.75 is: 15,920,245.48
Step by Step Solution
- Step 1: Write the proportion equation
20,703,416.43 : 28,571,588.97 = 11,536,056.75 : x - Step 2: Convert to fraction form
20,703,416.43/28,571,588.97 = 11,536,056.75/x - Step 3: Cross multiply
20,703,416.43x = 28,571,588.97 × 11,536,056.75 - Step 4: Simplify right side
20,703,416.43x = 329,603,471,795,594.06 - Step 5: Solve for x
x = 329,603,471,795,594.06/20,703,416.43 - Step 6: Final answer
x = 15,920,245.48
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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.