Finding the Fourth Proportional to 15,159,107.49, 20,919,623.31 and 8,283,590.16
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Solution
The fourth proportional to 15,159,107.49, 20,919,623.31 and 8,283,590.16 is: 11,431,384.46
Step by Step Solution
- Step 1: Write the proportion equation
15,159,107.49 : 20,919,623.31 = 8,283,590.16 : x - Step 2: Convert to fraction form
15,159,107.49/20,919,623.31 = 8,283,590.16/x - Step 3: Cross multiply
15,159,107.49x = 20,919,623.31 × 8,283,590.16 - Step 4: Simplify right side
15,159,107.49x = 173,289,585,801,622.62 - Step 5: Solve for x
x = 173,289,585,801,622.62/15,159,107.49 - Step 6: Final answer
x = 11,431,384.46
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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.