Finding the Fourth Proportional to 2,992,638.14, 4,121,142.24 and 2,599,989.56
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Solution
The fourth proportional to 2,992,638.14, 4,121,142.24 and 2,599,989.56 is: 3,580,428.47
Step by Step Solution
- Step 1: Write the proportion equation
2,992,638.14 : 4,121,142.24 = 2,599,989.56 : x - Step 2: Convert to fraction form
2,992,638.14/4,121,142.24 = 2,599,989.56/x - Step 3: Cross multiply
2,992,638.14x = 4,121,142.24 × 2,599,989.56 - Step 4: Simplify right side
2,992,638.14x = 10,714,926,765,669.36 - Step 5: Solve for x
x = 10,714,926,765,669.36/2,992,638.14 - Step 6: Final answer
x = 3,580,428.47
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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.