Finding the Fourth Proportional to 22,187,711.98, 30,618,455.11 and 12,398,236.62
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Solution
The fourth proportional to 22,187,711.98, 30,618,455.11 and 12,398,236.62 is: 17,109,238.29
Step by Step Solution
- Step 1: Write the proportion equation
22,187,711.98 : 30,618,455.11 = 12,398,236.62 : x - Step 2: Convert to fraction form
22,187,711.98/30,618,455.11 = 12,398,236.62/x - Step 3: Cross multiply
22,187,711.98x = 30,618,455.11 × 12,398,236.62 - Step 4: Simplify right side
22,187,711.98x = 379,614,851,392,628.12 - Step 5: Solve for x
x = 379,614,851,392,628.12/22,187,711.98 - Step 6: Final answer
x = 17,109,238.29
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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.