Finding the Fourth Proportional to 457,519,324.99, 631,680,721.31 and 351,483,891.77
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Solution
The fourth proportional to 457,519,324.99, 631,680,721.31 and 351,483,891.77 is: 485,281,355.67
Step by Step Solution
- Step 1: Write the proportion equation
457,519,324.99 : 631,680,721.31 = 351,483,891.77 : x - Step 2: Convert to fraction form
457,519,324.99/631,680,721.31 = 351,483,891.77/x - Step 3: Cross multiply
457,519,324.99x = 631,680,721.31 × 351,483,891.77 - Step 4: Simplify right side
457,519,324.99x = 222,025,598,277,203,712 - Step 5: Solve for x
x = 222,025,598,277,203,712/457,519,324.99 - Step 6: Final answer
x = 485,281,355.67
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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.