Finding the Fourth Proportional to 11,227,933.76, 15,493,386.21 and 8,289,314.70
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Solution
The fourth proportional to 11,227,933.76, 15,493,386.21 and 8,289,314.70 is: 11,438,396.13
Step by Step Solution
- Step 1: Write the proportion equation
11,227,933.76 : 15,493,386.21 = 8,289,314.70 : x - Step 2: Convert to fraction form
11,227,933.76/15,493,386.21 = 8,289,314.70/x - Step 3: Cross multiply
11,227,933.76x = 15,493,386.21 × 8,289,314.70 - Step 4: Simplify right side
11,227,933.76x = 128,429,554,063,330.30 - Step 5: Solve for x
x = 128,429,554,063,330.30/11,227,933.76 - Step 6: Final answer
x = 11,438,396.13
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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.