Finding the Fourth Proportional to 681,040,113.26, 1,021,560,181.08 and 163,470,553.06
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Solution
The fourth proportional to 681,040,113.26, 1,021,560,181.08 and 163,470,553.06 is: 245,205,832.28
Step by Step Solution
- Step 1: Write the proportion equation
681,040,113.26 : 1,021,560,181.08 = 163,470,553.06 : x - Step 2: Convert to fraction form
681,040,113.26/1,021,560,181.08 = 163,470,553.06/x - Step 3: Cross multiply
681,040,113.26x = 1,021,560,181.08 × 163,470,553.06 - Step 4: Simplify right side
681,040,113.26x = 166,995,007,785,221,344 - Step 5: Solve for x
x = 166,995,007,785,221,344/681,040,113.26 - Step 6: Final answer
x = 245,205,832.28
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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.