Finding the Fourth Proportional to 522,302,936.91, 720,778,029.11 and 287,348,556.96
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Solution
The fourth proportional to 522,302,936.91, 720,778,029.11 and 287,348,556.96 is: 396,540,995.49
Step by Step Solution
- Step 1: Write the proportion equation
522,302,936.91 : 720,778,029.11 = 287,348,556.96 : x - Step 2: Convert to fraction form
522,302,936.91/720,778,029.11 = 287,348,556.96/x - Step 3: Cross multiply
522,302,936.91x = 720,778,029.11 × 287,348,556.96 - Step 4: Simplify right side
522,302,936.91x = 207,114,526,551,794,624 - Step 5: Solve for x
x = 207,114,526,551,794,624/522,302,936.91 - Step 6: Final answer
x = 396,540,995.49
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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.