Finding the Fourth Proportional to 440,748,366.90, 661,122,550.35 and 393,131,253.30
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Solution
The fourth proportional to 440,748,366.90, 661,122,550.35 and 393,131,253.30 is: 589,696,879.95
Step by Step Solution
- Step 1: Write the proportion equation
440,748,366.90 : 661,122,550.35 = 393,131,253.30 : x - Step 2: Convert to fraction form
440,748,366.90/661,122,550.35 = 393,131,253.30/x - Step 3: Cross multiply
440,748,366.90x = 661,122,550.35 × 393,131,253.30 - Step 4: Simplify right side
440,748,366.90x = 259,907,936,803,987,872 - Step 5: Solve for x
x = 259,907,936,803,987,872/440,748,366.90 - Step 6: Final answer
x = 589,696,879.95
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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.