Finding the Fourth Proportional to 38,998,845.76, 53,818,373.28 and 21,595,190.08
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Solution
The fourth proportional to 38,998,845.76, 53,818,373.28 and 21,595,190.08 is: 29,801,343.56
Step by Step Solution
- Step 1: Write the proportion equation
38,998,845.76 : 53,818,373.28 = 21,595,190.08 : x - Step 2: Convert to fraction form
38,998,845.76/53,818,373.28 = 21,595,190.08/x - Step 3: Cross multiply
38,998,845.76x = 53,818,373.28 × 21,595,190.08 - Step 4: Simplify right side
38,998,845.76x = 1,162,218,000,777,993 - Step 5: Solve for x
x = 1,162,218,000,777,993/38,998,845.76 - Step 6: Final answer
x = 29,801,343.56
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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.