Finding the Fourth Proportional to 19,460,425.20, 29,198,932.20 and 12,277,474.80
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Solution
The fourth proportional to 19,460,425.20, 29,198,932.20 and 12,277,474.80 is: 18,421,445.09
Step by Step Solution
- Step 1: Write the proportion equation
19,460,425.20 : 29,198,932.20 = 12,277,474.80 : x - Step 2: Convert to fraction form
19,460,425.20/29,198,932.20 = 12,277,474.80/x - Step 3: Cross multiply
19,460,425.20x = 29,198,932.20 × 12,277,474.80 - Step 4: Simplify right side
19,460,425.20x = 358,489,154,272,408.56 - Step 5: Solve for x
x = 358,489,154,272,408.56/19,460,425.20 - Step 6: Final answer
x = 18,421,445.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.