Finding the Fourth Proportional to 20,097,708.95, 30,146,745.68 and 5,720,771.09
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Solution
The fourth proportional to 20,097,708.95, 30,146,745.68 and 5,720,771.09 is: 8,581,208.51
Step by Step Solution
- Step 1: Write the proportion equation
20,097,708.95 : 30,146,745.68 = 5,720,771.09 : x - Step 2: Convert to fraction form
20,097,708.95/30,146,745.68 = 5,720,771.09/x - Step 3: Cross multiply
20,097,708.95x = 30,146,745.68 × 5,720,771.09 - Step 4: Simplify right side
20,097,708.95x = 172,462,631,143,726.38 - Step 5: Solve for x
x = 172,462,631,143,726.38/20,097,708.95 - Step 6: Final answer
x = 8,581,208.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.