Finding the Fourth Proportional to 11,711,971.78, 16,162,517.46 and 6,555,331.96
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Solution
The fourth proportional to 11,711,971.78, 16,162,517.46 and 6,555,331.96 is: 9,046,356.09
Step by Step Solution
- Step 1: Write the proportion equation
11,711,971.78 : 16,162,517.46 = 6,555,331.96 : x - Step 2: Convert to fraction form
11,711,971.78/16,162,517.46 = 6,555,331.96/x - Step 3: Cross multiply
11,711,971.78x = 16,162,517.46 × 6,555,331.96 - Step 4: Simplify right side
11,711,971.78x = 105,950,667,259,596.03 - Step 5: Solve for x
x = 105,950,667,259,596.03/11,711,971.78 - Step 6: Final answer
x = 9,046,356.09
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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.