Finding the Fourth Proportional to 21,147,122.93, 29,183,029.62 and 11,979,765.68
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Solution
The fourth proportional to 21,147,122.93, 29,183,029.62 and 11,979,765.68 is: 16,532,076.63
Step by Step Solution
- Step 1: Write the proportion equation
21,147,122.93 : 29,183,029.62 = 11,979,765.68 : x - Step 2: Convert to fraction form
21,147,122.93/29,183,029.62 = 11,979,765.68/x - Step 3: Cross multiply
21,147,122.93x = 29,183,029.62 × 11,979,765.68 - Step 4: Simplify right side
21,147,122.93x = 349,605,856,680,099.44 - Step 5: Solve for x
x = 349,605,856,680,099.44/21,147,122.93 - Step 6: Final answer
x = 16,532,076.63
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.