Finding the Fourth Proportional to 262,440,629.20, 393,660,943.80 and 160,403,957.20
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Solution
The fourth proportional to 262,440,629.20, 393,660,943.80 and 160,403,957.20 is: 240,605,935.80
Step by Step Solution
- Step 1: Write the proportion equation
262,440,629.20 : 393,660,943.80 = 160,403,957.20 : x - Step 2: Convert to fraction form
262,440,629.20/393,660,943.80 = 160,403,957.20/x - Step 3: Cross multiply
262,440,629.20x = 393,660,943.80 × 160,403,957.20 - Step 4: Simplify right side
262,440,629.20x = 63,144,773,180,606,800 - Step 5: Solve for x
x = 63,144,773,180,606,800/262,440,629.20 - Step 6: Final answer
x = 240,605,935.80
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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.