Finding the Fourth Proportional to 20,260,260.97, 27,961,948.24 and 12,424,458.67
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Solution
The fourth proportional to 20,260,260.97, 27,961,948.24 and 12,424,458.67 is: 17,147,462.74
Step by Step Solution
- Step 1: Write the proportion equation
20,260,260.97 : 27,961,948.24 = 12,424,458.67 : x - Step 2: Convert to fraction form
20,260,260.97/27,961,948.24 = 12,424,458.67/x - Step 3: Cross multiply
20,260,260.97x = 27,961,948.24 × 12,424,458.67 - Step 4: Simplify right side
20,260,260.97x = 347,412,070,139,593.25 - Step 5: Solve for x
x = 347,412,070,139,593.25/20,260,260.97 - Step 6: Final answer
x = 17,147,462.74
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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.