Finding the Fourth Proportional to 11,374,538.70, 15,696,967.87 and 6,479,688.24
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Solution
The fourth proportional to 11,374,538.70, 15,696,967.87 and 6,479,688.24 is: 8,942,029.28
Step by Step Solution
- Step 1: Write the proportion equation
11,374,538.70 : 15,696,967.87 = 6,479,688.24 : x - Step 2: Convert to fraction form
11,374,538.70/15,696,967.87 = 6,479,688.24/x - Step 3: Cross multiply
11,374,538.70x = 15,696,967.87 × 6,479,688.24 - Step 4: Simplify right side
11,374,538.70x = 101,711,458,110,896.84 - Step 5: Solve for x
x = 101,711,458,110,896.84/11,374,538.70 - Step 6: Final answer
x = 8,942,029.28
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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.