Finding the Fourth Proportional to 21,793,245.12, 30,074,676.84 and 12,631,202.28
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Solution
The fourth proportional to 21,793,245.12, 30,074,676.84 and 12,631,202.28 is: 17,431,058.32
Step by Step Solution
- Step 1: Write the proportion equation
21,793,245.12 : 30,074,676.84 = 12,631,202.28 : x - Step 2: Convert to fraction form
21,793,245.12/30,074,676.84 = 12,631,202.28/x - Step 3: Cross multiply
21,793,245.12x = 30,074,676.84 × 12,631,202.28 - Step 4: Simplify right side
21,793,245.12x = 379,879,326,671,671.19 - Step 5: Solve for x
x = 379,879,326,671,671.19/21,793,245.12 - Step 6: Final answer
x = 17,431,058.32
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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.