Finding the Fourth Proportional to 21,339,372.44, 29,449,046.98 and 13,077,838.70
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Solution
The fourth proportional to 21,339,372.44, 29,449,046.98 and 13,077,838.70 is: 18,047,854.37
Step by Step Solution
- Step 1: Write the proportion equation
21,339,372.44 : 29,449,046.98 = 13,077,838.70 : x - Step 2: Convert to fraction form
21,339,372.44/29,449,046.98 = 13,077,838.70/x - Step 3: Cross multiply
21,339,372.44x = 29,449,046.98 × 13,077,838.70 - Step 4: Simplify right side
21,339,372.44x = 385,129,886,252,698.12 - Step 5: Solve for x
x = 385,129,886,252,698.12/21,339,372.44 - Step 6: Final answer
x = 18,047,854.37
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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.