Finding the Fourth Proportional to 20,243,255.64, 27,934,997.97 and 11,544,228.03
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Solution
The fourth proportional to 20,243,255.64, 27,934,997.97 and 11,544,228.03 is: 15,930,638.45
Step by Step Solution
- Step 1: Write the proportion equation
20,243,255.64 : 27,934,997.97 = 11,544,228.03 : x - Step 2: Convert to fraction form
20,243,255.64/27,934,997.97 = 11,544,228.03/x - Step 3: Cross multiply
20,243,255.64x = 27,934,997.97 × 11,544,228.03 - Step 4: Simplify right side
20,243,255.64x = 322,487,986,666,377.88 - Step 5: Solve for x
x = 322,487,986,666,377.88/20,243,255.64 - Step 6: Final answer
x = 15,930,638.45
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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.