Finding the Fourth Proportional to 15,472,714.12, 21,352,857.42 and 8,503,638.70
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Solution
The fourth proportional to 15,472,714.12, 21,352,857.42 and 8,503,638.70 is: 11,735,302.76
Step by Step Solution
- Step 1: Write the proportion equation
15,472,714.12 : 21,352,857.42 = 8,503,638.70 : x - Step 2: Convert to fraction form
15,472,714.12/21,352,857.42 = 8,503,638.70/x - Step 3: Cross multiply
15,472,714.12x = 21,352,857.42 × 8,503,638.70 - Step 4: Simplify right side
15,472,714.12x = 181,576,984,745,859 - Step 5: Solve for x
x = 181,576,984,745,859/15,472,714.12 - Step 6: Final answer
x = 11,735,302.76
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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.