Finding the Fourth Proportional to 8,642,958.07, 11,927,257.66 and 4,775,451.68
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Solution
The fourth proportional to 8,642,958.07, 11,927,257.66 and 4,775,451.68 is: 6,590,109.79
Step by Step Solution
- Step 1: Write the proportion equation
8,642,958.07 : 11,927,257.66 = 4,775,451.68 : x - Step 2: Convert to fraction form
8,642,958.07/11,927,257.66 = 4,775,451.68/x - Step 3: Cross multiply
8,642,958.07x = 11,927,257.66 × 4,775,451.68 - Step 4: Simplify right side
8,642,958.07x = 56,958,042,630,239.87 - Step 5: Solve for x
x = 56,958,042,630,239.87/8,642,958.07 - Step 6: Final answer
x = 6,590,109.79
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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.