Finding the Fourth Proportional to 7,900,832.75, 11,850,387.99 and 5,358,379.64
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Solution
The fourth proportional to 7,900,832.75, 11,850,387.99 and 5,358,379.64 is: 8,036,985.43
Step by Step Solution
- Step 1: Write the proportion equation
7,900,832.75 : 11,850,387.99 = 5,358,379.64 : x - Step 2: Convert to fraction form
7,900,832.75/11,850,387.99 = 5,358,379.64/x - Step 3: Cross multiply
7,900,832.75x = 11,850,387.99 × 5,358,379.64 - Step 4: Simplify right side
7,900,832.75x = 63,498,877,652,370.66 - Step 5: Solve for x
x = 63,498,877,652,370.66/7,900,832.75 - Step 6: Final answer
x = 8,036,985.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.