Finding the Fourth Proportional to 11,667,131.58, 16,100,641.88 and 6,440,140.82
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Solution
The fourth proportional to 11,667,131.58, 16,100,641.88 and 6,440,140.82 is: 8,887,394.50
Step by Step Solution
- Step 1: Write the proportion equation
11,667,131.58 : 16,100,641.88 = 6,440,140.82 : x - Step 2: Convert to fraction form
11,667,131.58/16,100,641.88 = 6,440,140.82/x - Step 3: Cross multiply
11,667,131.58x = 16,100,641.88 × 6,440,140.82 - Step 4: Simplify right side
11,667,131.58x = 103,690,400,999,589.55 - Step 5: Solve for x
x = 103,690,400,999,589.55/11,667,131.58 - Step 6: Final answer
x = 8,887,394.50
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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.