Finding the Fourth Proportional to 8,128,246.84, 11,207,786.88 and 5,184,126.88
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Solution
The fourth proportional to 8,128,246.84, 11,207,786.88 and 5,184,126.88 is: 7,148,231.39
Step by Step Solution
- Step 1: Write the proportion equation
8,128,246.84 : 11,207,786.88 = 5,184,126.88 : x - Step 2: Convert to fraction form
8,128,246.84/11,207,786.88 = 5,184,126.88/x - Step 3: Cross multiply
8,128,246.84x = 11,207,786.88 × 5,184,126.88 - Step 4: Simplify right side
8,128,246.84x = 58,102,589,229,919.34 - Step 5: Solve for x
x = 58,102,589,229,919.34/8,128,246.84 - Step 6: Final answer
x = 7,148,231.39
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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.