Finding the Fourth Proportional to 15,276,620.14, 21,081,315.42 and 8,401,102.20
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Solution
The fourth proportional to 15,276,620.14, 21,081,315.42 and 8,401,102.20 is: 11,593,289.86
Step by Step Solution
- Step 1: Write the proportion equation
15,276,620.14 : 21,081,315.42 = 8,401,102.20 : x - Step 2: Convert to fraction form
15,276,620.14/21,081,315.42 = 8,401,102.20/x - Step 3: Cross multiply
15,276,620.14x = 21,081,315.42 × 8,401,102.20 - Step 4: Simplify right side
15,276,620.14x = 177,106,285,353,855.94 - Step 5: Solve for x
x = 177,106,285,353,855.94/15,276,620.14 - Step 6: Final answer
x = 11,593,289.86
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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.