Finding the Fourth Proportional to 4,286,620.21, 5,920,445.49 and 2,823,071.16
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Solution
The fourth proportional to 4,286,620.21, 5,920,445.49 and 2,823,071.16 is: 3,899,071.55
Step by Step Solution
- Step 1: Write the proportion equation
4,286,620.21 : 5,920,445.49 = 2,823,071.16 : x - Step 2: Convert to fraction form
4,286,620.21/5,920,445.49 = 2,823,071.16/x - Step 3: Cross multiply
4,286,620.21x = 5,920,445.49 × 2,823,071.16 - Step 4: Simplify right side
4,286,620.21x = 16,713,838,902,652.13 - Step 5: Solve for x
x = 16,713,838,902,652.13/4,286,620.21 - Step 6: Final answer
x = 3,899,071.55
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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.