Finding the Fourth Proportional to 13,102,447.62, 18,081,449.67 and 7,599,085.92
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Solution
The fourth proportional to 13,102,447.62, 18,081,449.67 and 7,599,085.92 is: 10,486,780.30
Step by Step Solution
- Step 1: Write the proportion equation
13,102,447.62 : 18,081,449.67 = 7,599,085.92 : x - Step 2: Convert to fraction form
13,102,447.62/18,081,449.67 = 7,599,085.92/x - Step 3: Cross multiply
13,102,447.62x = 18,081,449.67 × 7,599,085.92 - Step 4: Simplify right side
13,102,447.62x = 137,402,489,628,982.20 - Step 5: Solve for x
x = 137,402,489,628,982.20/13,102,447.62 - Step 6: Final answer
x = 10,486,780.30
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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.