Finding the Fourth Proportional to 681,040,239.24, 1,021,560,372.36 and 163,470,679.68
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Solution
The fourth proportional to 681,040,239.24, 1,021,560,372.36 and 163,470,679.68 is: 245,206,022.76
Step by Step Solution
- Step 1: Write the proportion equation
681,040,239.24 : 1,021,560,372.36 = 163,470,679.68 : x - Step 2: Convert to fraction form
681,040,239.24/1,021,560,372.36 = 163,470,679.68/x - Step 3: Cross multiply
681,040,239.24x = 1,021,560,372.36 × 163,470,679.68 - Step 4: Simplify right side
681,040,239.24x = 166,995,168,403,843,104 - Step 5: Solve for x
x = 166,995,168,403,843,104/681,040,239.24 - Step 6: Final answer
x = 245,206,022.76
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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.