Finding the Fourth Proportional to 13,444,539.12, 20,081,081.97 and 12,163,170.96
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Solution
The fourth proportional to 13,444,539.12, 20,081,081.97 and 12,163,170.96 is: 18,167,200.15
Step by Step Solution
- Step 1: Write the proportion equation
13,444,539.12 : 20,081,081.97 = 12,163,170.96 : x - Step 2: Convert to fraction form
13,444,539.12/20,081,081.97 = 12,163,170.96/x - Step 3: Cross multiply
13,444,539.12x = 20,081,081.97 × 12,163,170.96 - Step 4: Simplify right side
13,444,539.12x = 244,249,633,062,883.59 - Step 5: Solve for x
x = 244,249,633,062,883.59/13,444,539.12 - Step 6: Final answer
x = 18,167,200.15
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.