Finding the Fourth Proportional to 8,312,769.99, 11,479,546.08 and 7,859,888.82
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Solution
The fourth proportional to 8,312,769.99, 11,479,546.08 and 7,859,888.82 is: 10,854,138.39
Step by Step Solution
- Step 1: Write the proportion equation
8,312,769.99 : 11,479,546.08 = 7,859,888.82 : x - Step 2: Convert to fraction form
8,312,769.99/11,479,546.08 = 7,859,888.82/x - Step 3: Cross multiply
8,312,769.99x = 11,479,546.08 × 7,859,888.82 - Step 4: Simplify right side
8,312,769.99x = 90,227,955,892,866.83 - Step 5: Solve for x
x = 90,227,955,892,866.83/8,312,769.99 - Step 6: Final answer
x = 10,854,138.39
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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.