Finding the Fourth Proportional to 5,420,104.75, 7,479,954.16 and 2,972,818.94
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Solution
The fourth proportional to 5,420,104.75, 7,479,954.16 and 2,972,818.94 is: 4,102,605.11
Step by Step Solution
- Step 1: Write the proportion equation
5,420,104.75 : 7,479,954.16 = 2,972,818.94 : x - Step 2: Convert to fraction form
5,420,104.75/7,479,954.16 = 2,972,818.94/x - Step 3: Cross multiply
5,420,104.75x = 7,479,954.16 × 2,972,818.94 - Step 4: Simplify right side
5,420,104.75x = 22,236,549,432,182.19 - Step 5: Solve for x
x = 22,236,549,432,182.19/5,420,104.75 - Step 6: Final answer
x = 4,102,605.11
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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.