Finding the Fourth Proportional to 681,480,024.20, 1,021,968,093.90 and 221,433,201.80
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Solution
The fourth proportional to 681,480,024.20, 1,021,968,093.90 and 221,433,201.80 is: 332,067,939.09
Step by Step Solution
- Step 1: Write the proportion equation
681,480,024.20 : 1,021,968,093.90 = 221,433,201.80 : x - Step 2: Convert to fraction form
681,480,024.20/1,021,968,093.90 = 221,433,201.80/x - Step 3: Cross multiply
681,480,024.20x = 1,021,968,093.90 × 221,433,201.80 - Step 4: Simplify right side
681,480,024.20x = 226,297,667,169,720,064 - Step 5: Solve for x
x = 226,297,667,169,720,064/681,480,024.20 - Step 6: Final answer
x = 332,067,939.09
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1.5x scale
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.