Finding the Fourth Proportional to 22,230,811.18, 30,677,859.28 and 12,308,135.22
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Solution
The fourth proportional to 22,230,811.18, 30,677,859.28 and 12,308,135.22 is: 16,984,861.11
Step by Step Solution
- Step 1: Write the proportion equation
22,230,811.18 : 30,677,859.28 = 12,308,135.22 : x - Step 2: Convert to fraction form
22,230,811.18/30,677,859.28 = 12,308,135.22/x - Step 3: Cross multiply
22,230,811.18x = 30,677,859.28 × 12,308,135.22 - Step 4: Simplify right side
22,230,811.18x = 377,587,240,278,371.88 - Step 5: Solve for x
x = 377,587,240,278,371.88/22,230,811.18 - Step 6: Final answer
x = 16,984,861.11
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1.5x scale
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.