Finding the Fourth Proportional to 15,201,212.14, 20,977,692.99 and 8,231,901.72
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Solution
The fourth proportional to 15,201,212.14, 20,977,692.99 and 8,231,901.72 is: 11,360,035.33
Step by Step Solution
- Step 1: Write the proportion equation
15,201,212.14 : 20,977,692.99 = 8,231,901.72 : x - Step 2: Convert to fraction form
15,201,212.14/20,977,692.99 = 8,231,901.72/x - Step 3: Cross multiply
15,201,212.14x = 20,977,692.99 × 8,231,901.72 - Step 4: Simplify right side
15,201,212.14x = 172,686,307,006,012.94 - Step 5: Solve for x
x = 172,686,307,006,012.94/15,201,212.14 - Step 6: Final answer
x = 11,360,035.33
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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.