Finding the Fourth Proportional to 383,521,793.55, 529,259,846.74 and 207,309,791.26
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Solution
The fourth proportional to 383,521,793.55, 529,259,846.74 and 207,309,791.26 is: 286,087,388.50
Step by Step Solution
- Step 1: Write the proportion equation
383,521,793.55 : 529,259,846.74 = 207,309,791.26 : x - Step 2: Convert to fraction form
383,521,793.55/529,259,846.74 = 207,309,791.26/x - Step 3: Cross multiply
383,521,793.55x = 529,259,846.74 × 207,309,791.26 - Step 4: Simplify right side
383,521,793.55x = 109,720,748,349,968,992 - Step 5: Solve for x
x = 109,720,748,349,968,992/383,521,793.55 - Step 6: Final answer
x = 286,087,388.50
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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.