Finding the Fourth Proportional to 28,876,390.32, 43,285,439.26 and 18,101,257.97
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Solution
The fourth proportional to 28,876,390.32, 43,285,439.26 and 18,101,257.97 is: 27,133,616.55
Step by Step Solution
- Step 1: Write the proportion equation
28,876,390.32 : 43,285,439.26 = 18,101,257.97 : x - Step 2: Convert to fraction form
28,876,390.32/43,285,439.26 = 18,101,257.97/x - Step 3: Cross multiply
28,876,390.32x = 43,285,439.26 × 18,101,257.97 - Step 4: Simplify right side
28,876,390.32x = 783,520,902,299,519.62 - Step 5: Solve for x
x = 783,520,902,299,519.62/28,876,390.32 - Step 6: Final answer
x = 27,133,616.55
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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.