Finding the Fourth Proportional to 18,753,263.23, 28,093,497.12 and 13,820,336.13
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Solution
The fourth proportional to 18,753,263.23, 28,093,497.12 and 13,820,336.13 is: 20,703,680.66
Step by Step Solution
- Step 1: Write the proportion equation
18,753,263.23 : 28,093,497.12 = 13,820,336.13 : x - Step 2: Convert to fraction form
18,753,263.23/28,093,497.12 = 13,820,336.13/x - Step 3: Cross multiply
18,753,263.23x = 28,093,497.12 × 13,820,336.13 - Step 4: Simplify right side
18,753,263.23x = 388,261,573,265,587 - Step 5: Solve for x
x = 388,261,573,265,587/18,753,263.23 - Step 6: Final answer
x = 20,703,680.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.