Finding the Fourth Proportional to 13,439,584.38, 20,153,771.35 and 4,215,180.26
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Solution
The fourth proportional to 13,439,584.38, 20,153,771.35 and 4,215,180.26 is: 6,321,012.37
Step by Step Solution
- Step 1: Write the proportion equation
13,439,584.38 : 20,153,771.35 = 4,215,180.26 : x - Step 2: Convert to fraction form
13,439,584.38/20,153,771.35 = 4,215,180.26/x - Step 3: Cross multiply
13,439,584.38x = 20,153,771.35 × 4,215,180.26 - Step 4: Simplify right side
13,439,584.38x = 84,951,779,159,073.55 - Step 5: Solve for x
x = 84,951,779,159,073.55/13,439,584.38 - Step 6: Final answer
x = 6,321,012.37
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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.